Netflix, Inc. v. Divx, LLC

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Case: 22-1203 Document: 43 Page: 1 Filed: 10/25/2023 United States Court of Appeals for the Federal Circuit ______________________ NETFLIX, INC., Appellant v. DIVX, LLC, Appellee ______________________ 2022-1203, 2022-1204 ______________________ Appeals from the United States Patent and Trademark Office, Patent Trial and Appeal Board in Nos. IPR2020- 00647, IPR2020-00648. ______________________ Decided: October 25, 2023 ______________________ THOMAS SAUNDERS, Wilmer Cutler Pickering Hale and Dorr LLP, Washington, DC, argued for appellant. Also rep- resented by ROBERT STILLER; MARK CHRISTOPHER FLEMING, SARAH R. FRAZIER, MELISSA N. MOREL, Boston, MA. MICHAEL GREGORY PATTILLO, JR., MoloLamken LLP, Washington, DC, argued for appellee. Also represented by RAYINER HASHEM, JEFFREY A. LAMKEN; JONATHAN E. BARBEE, NATHANIEL RUBIN, New York, NY; NATHAN NOBU LOWENSTEIN, KENNETH J. WEATHERWAX, Lowenstein & Weatherwax LLP, Santa Monica, CA. Case: 22-1203 Document: 43 Page: 2 Filed: 10/25/2023 2 NETFLIX, INC. v. DIVX, LLC ______________________ Before DYK, LINN, and CHEN, Circuit Judges. Opinion for the court filed by Circuit Judge CHEN. Dissenting opinion filed by Circuit Judge DYK. CHEN, Circuit Judge Netflix, Inc. (Netflix) appeals two final written deci- sions of the Patent Trial and Appeal Board (Board) deter- mining Netflix did not meet its burden of proving claims 1– 5 and 12 of U.S. Patent No. 9,270,720 (’720 patent) and claims 1–6, 8–10, 13–14, 16–17, and 19 of U.S. Patent No. 9,998,515 (’515 patent) unpatentable under 35 U.S.C. § 103. See Hulu, LLC v. DivX, LLC, No. IPR2020-00647, 2021 WL 4859625 (P.T.A.B. Sept. 27, 2021) (’720 Patent De- cision); Netflix, Inc. v. DivX, LLC, No. IPR 2021-00648, 2021 WL 4859708 (P.T.A.B. Sept. 27, 2021) (’515 Patent De- cision). Each Board decision in these inter partes reviews (IPR) is lengthy, with the Board closely analyzing the ar- guments and evidence presented by Netflix and the patent owner DivX, LLC (DivX). Netflix’s appeal does not chal- lenge any of the Board’s substantive analysis. It instead makes a purely procedural argument, accusing the Board of falling down on the job by failing to address several ar- guments purportedly raised in Netflix’s petitions. After marching through the relevant papers below, we see no er- ror in how the Board understood Netflix’s petition argu- ments. Because all of Netflix’s arguments on appeal were not raised below, they are forfeited. We affirm. BACKGROUND A. The Challenged Patents The ’720 and ’515 patents, assigned to DivX, relate to a method for adaptive bitrate streaming of content on a play- back device, such as a mobile phone or personal computer. “Adaptive bit rate streaming involves detecting the present Case: 22-1203 Document: 43 Page: 3 Filed: 10/25/2023 NETFLIX, INC. v. DIVX, LLC 3 streaming conditions (e.g., the playback device’s network bandwidth and video decoding capacity) in real time and adjusting the quality of the streamed media accordingly.” ’720 patent col 1 ll. 30–34. 1 To accomplish this adjustment, the method creates an index file that points to alternate source media streams (what the claim refers to as “assets”), where each stream contains video and audio data. ’720 pa- tent col. 1 ll. 57–60. Each alternate source stream can en- code media at different maximum bitrates, and the playback device may switch between the alternate streams. ’720 patent col. 7 ll. 29–42. The ’720 patent and ’515 patent both generally claim a method for receiving a request for content from a playback device, retrieving a list of assets associated with the re- quested content, filtering the list of assets based on certain criteria, generating an index that describes each asset in the filtered list, and sending the index to the playback de- vice. For the ’720 patent, claim 1 is representative (empha- ses added): 1. A method of generating a top level index file, com- prising: receiving a request from a playback device at a playback server system, where the request (i) iden- tifies a piece of content and (ii) includes a product identifier; retrieving, using the playback server system, (i) a list of assets associated with the identified piece of content and (ii) at least one device capabil- ity based upon the product identifier, wherein 1 The ’515 patent is a continuation of an application that issued as the ’720 patent. The specifications of the ’515 patent and ’720 patent are thus nearly identical. We refer to the ’720 patent unless otherwise noted. Case: 22-1203 Document: 43 Page: 4 Filed: 10/25/2023 4 NETFLIX, INC. v. DIVX, LLC each asset is a different stream associated with the piece of content; filtering the list of assets using the at least one de- vice capability using the playback server system, wherein the playback server system maintains a database of product identifiers and associated de- vice capabilities; generating a top level index file describing each as- set in the filtered list of assets using the playback server system; and sending the top level index file to the playback de- vice using the playback server system, wherein the top level index file is used by the playback device to determine which assets to request for playback on the device. For the ’515 patent, claim 1 is representative and closely mirrors the ’720 patent’s claim 1 but provides more detail for the top level index file (emphasis added): 1. A method for authorizing playback of content, com- prising: receiving a request for content from a playback de- vice at a playback server, where the request in- cludes a product identifier that identifies a device configuration; identifying, using the playback server, based on the product identifier, a plurality of device capabilities including a device type and a device software ver- sion indicating a version number for an adaptive streaming software component implemented on the playback device; retrieving, using the playback server, a list of as- sets associated with the identified piece of content, wherein each asset is a different stream associated with the piece of content; Case: 22-1203 Document: 43 Page: 5 Filed: 10/25/2023 NETFLIX, INC. v. DIVX, LLC 5 filtering, using the playback server, the list of as- sets based on the plurality of device capabilities; generating, using the playback server, a top level index file describing each asset in the filtered list of assets, wherein the top level index file identifies locations and bitrates of a plurality of alternative streams capable of being used to perform adaptive streaming of the content; and sending the top level index file from the playback server to the playback device. B. The IPR Petitions and Board Decisions Netflix filed petitions for inter partes review for several claims of the ’720 patent and the ’515 patent under 35 U.S.C. § 103, challenging the claims of both patents over: (1) the combination of Pyle 2 and Marusi 3 and (2) the com- bination of Lewis4 and Marusi. At issue in this appeal is whether Netflix’s petitions contained certain arguments di- rected to the “filtering the list of assets” limitation of claim 1 of the ’720 patent, the “retrieving . . . a list of assets” lim- itation of claim 1 in both patents, and the “generating . . . a top level index file” limitation of claim 1 of the ’515 pa- tent. For the “filtering the list of assets” limitation of the ’720 patent, Netflix argued that Pyle’s selection of a pre-existing manifest met this limitation. Netflix also argued that to the extent Pyle does not teach or render obvious the filtering limitation’s “database of product identifiers and associated device capabilities,” Marusi’s database would. As for the “generating . . . a top level index file” limitation, Netflix 2 U.S. Patent No. 8,782,268. 3 European Application EP 2180664. 4 U.S. Patent Publication No. 2012/0047542. Case: 22-1203 Document: 43 Page: 6 Filed: 10/25/2023 6 NETFLIX, INC. v. DIVX, LLC argued that Pyle’s creation of a new manifest teaches this limitation. The Board observed a disconnect in how Netflix used Pyle to teach both the “filtering” and “generating” limita- tions of the ’720 patent. The “generating” limitation cre- ates a top level index file that describes “each asset in the filtered list of assets,” and so the index file’s content is nec- essarily a byproduct of what the “filtering” step produces. But because Netflix relied on Pyle’s selection of a pre-exist- ing manifest to satisfy the “filtering” limitation and relied on Pyle’s creation of a new, separate manifest, which is un- related to Pyle’s pre-existing manifests, for the “generat- ing” limitation, Pyle’s new manifest could not describe each asset in the filtered list of assets as required by the “filter- ing” limitation. ’720 Patent Decision, 2021 WL 4859625, at *15. The Board similarly found the combination of Pyle and Marusi deficient for also relying on Pyle’s selection of a pre-existing manifest to perform the “filtering” limita- tion. Id. For the “retrieving . . . a list of assets” limitation in the ’720 patent and ’515 patent, Netflix argued “[t]he combina- tion of Lewis and Marusi renders this limitation obvious.” J.A. 6069; No. IPR 2020-00648, Paper No. 3 at 60 (P.T.A.B. Mar. 11, 2020). Specifically, Netflix argued, “[a] [skilled artisan] would have found it obvious to retrieve a list of as- sets using the playback server system because Lewis teaches that the manifest file server and rule resolution server generate[] a dynamic file manifest, and Lewis teaches that a dynamic manifest file contains a list of URLs to container files containing content.” J.A. 6070; J.A. 7070. The Board rejected this argument, finding that a result achieved in Lewis—i.e., generating a dynamic manifest file containing a list of URLs—cannot, without further expla- nation, render obvious an intermediate prior step of “re- trieving.” ’720 Patent Decision, 2021 WL 4859625, at *19. Case: 22-1203 Document: 43 Page: 7 Filed: 10/25/2023 NETFLIX, INC. v. DIVX, LLC 7 Finally, for the “generating . . . a top level file index” limitation in the ’515 patent, Netflix argued that Pyle’s transmission of a manifest (either a pre-existing or a new manifest) into storage teaches this limitation. The Board rejected this argument and found that a skilled artisan would not have understood transmitting a file into memory to correspond to the “generating” limitation. ’515 Patent Decision, 2021 WL 4859708, at *14. The Board further found that—contrary to Netflix’s characterization of its pe- tition arguments in its Reply brief—the petition did not as- sert the additional argument that Pyle’s creation of a new manifest also met the “generating” limitation. Id. at *14 & n.9. Netflix timely appealed both final written decisions to our court. We have jurisdiction under 28 U.S.C. § 1295(a)(4)(A). STANDARD OF REVIEW We review the Board’s judgments concerning what ar- guments are fairly presented in a petition and other plead- ings for abuse of discretion. See Ericsson Inc. v. Intell. Ventures I LLC, 901 F.3d 1374, 1379 (Fed. Cir. 2018); Al- taire Pharms., Inc. v. Paragon Bioteck, Inc., 889 F.3d 1274, 1284 (Fed. Cir. 2018), remand order modified by stipula- tion,738 F. App’x 1017 (Fed. Cir. 2018). Likewise, “[t]he Board’s determinations that a party exceeded the scope of a proper reply are reviewed for abuse of discretion.” Apple Inc. v. Andrea Elec. Corp., 949 F.3d 697, 705 (Fed. Cir. 2020). “An abuse of discretion is found if the decision: (1) is clearly unreasonable, arbitrary, or fanciful; (2) is based on an erroneous conclusion of law; (3) rests on clearly erro- neous fact finding; or (4) involves a record that contains no evidence on which the Board could rationally base its deci- sion.” Intelligent Bio-Systems, Inc. v. Illumina Cambridge Ltd., 821 F.3d 1359, 1367 (Fed. Cir. 2016) (citation omit- ted). Case: 22-1203 Document: 43 Page: 8 Filed: 10/25/2023 8 NETFLIX, INC. v. DIVX, LLC DISCUSSION This appeal is yet another instance where an IPR peti- tioner contends that a particular argument was properly raised, but overlooked or otherwise incorrectly interpreted by the Board. We begin by acknowledging the challenge the Board faces when interpreting inter partes review peti- tions. We have previously reprimanded the Board for fail- ing to address arguments that were presented in a petition. See, e.g., Provisur Techs. Inc. v. Weber, Inc., 50 F.4th 117, 123–24 (Fed. Cir. 2022); Netflix v. DivX, LLC, 2023 WL 3115576, at *5 (Fed. Cir. Apr. 27, 2023); Uniloc 2017 LLC v. Facebook, Inc., 2021 WL 5370480, at *8–9 (Fed. Cir. Nov. 18, 2021); Microsoft Corp. v. Parallel Networks Licensing, LLC, 715 F. App’x 1013, 1021 (Fed. Cir. 2017). We have likewise reprimanded the Board for finding a claim un- patentable based on theories not presented in the petition. See, e.g., In re Magnum Oil Tools Int’l, Ltd., 829 F.3d 1364, 1380–81 (Fed. Cir. 2016); In re NuVasive Inc., 841 F.3d 966, 968 (Fed. Cir. 2016); Oren Techs., LLC v. Proppant Express Invest., LLC, 2021 WL 3120819, at *4–*5 (Fed. Cir. July 23, 2021). Given this backdrop, the Board walks a fine line when interpreting the scope of a petition and determining what arguments have been fairly presented. 5 While the Board should not take an overly mechanistic view of a petition and decline to address an argument be- cause the petitioner did not present it with ideal vigor and clarity, the Board should also not have to decode a petition to locate additional arguments beyond the ones clearly made. A petitioner may not rely on a vague, generic, and/or meandering petition and later fault the Board for failing to understand what the petition really meant. Ultimately, it 5 Judge Rich once remarked: “The life of a patent so- licitor has always been a hard one.” In re Ruschig, 379 F.2d 990, 993 (CCPA 1967). That observation certainly applies today to administrative patent judges conducting IPRs. Case: 22-1203 Document: 43 Page: 9 Filed: 10/25/2023 NETFLIX, INC. v. DIVX, LLC 9 is the petitioner’s burden to present a clear argument. In- telligent Bio-Systems, 821 F.3d at 1367 (“It is of the utmost importance that petitioners in the IPR proceedings adhere to the requirement that the initial petition identify ‘with particularity’ the ‘evidence that supports the grounds for the challenge to each claim.’”) (quoting 35 U.S.C. § 312(a)(3) (2012)); see also 37 C.F.R. § 42.104(b)(4)–(5) (2012) (requiring a petitioner to identify “[h]ow the con- strued claim is unpatentable,” “specify where each element of the claim is found in the prior art patents or printed pub- lications relied upon,” and identify “[t]he exhibit number of the supporting evidence relied upon to support the chal- lenge and the relevance of the evidence to the challenge raised, including identifying specific portions of the evi- dence that support the challenge”). The Board is entitled to discretion in how it interprets petitions. See Ericsson Inc., 901 F.3d at 1379 (the Board’s compliance with its procedures reviewed for abuse of dis- cretion). And we have rejected, many times, post-hoc at- tempts on appeal to include additional, new arguments not contained in the petition. See, e.g., Microsoft Corp. v. Bis- cotti, Inc., 878 F.3d 1052, 1074 (Fed. Cir. 2017) (“Microsoft did not present to the Board the full argument that it pre- sents here on appeal . . . Microsoft’s brief on appeal is far more detailed and contains substantial new arguments re- garding why it believes Kenoyer anticipates this limitation of claim 69.”); see also Wasica Fin. GmbH v. Cont’l Auto. Sys., Inc., 853 F.3d 1272, 1286 (Fed. Cir. 2017) (“We also are unpersuaded by Continental’s attempts to cure the pe- tition’s deficiencies in its subsequent briefing to the Board and to us.”); Yita LLC v. MacNeil IP LLC, 69 F.4th 1356, 1366–67 (Fed. Cir. 2023) (disagreeing with Yita that an ar- gument was raised in petition and thus finding no abuse of discretion by the Board in “declining to consider Yita’s ar- gument about modifying the teaching of Rabbe . . . because it was presented too late—in a footnote in Yita’s reply brief”); Henny Penny Corp. v. Frymaster LLC, 938 F.3d Case: 22-1203 Document: 43 Page: 10 Filed: 10/25/2023 10 NETFLIX, INC. v. DIVX, LLC 1324, 1331 (Fed. Cir. 2019) (“[T]he Board did not abuse its discretion by holding HPC to the obviousness theory in its petition”); Ariosa Diagnostics v. Verinata Health, Inc., 805 F.3d 1359, 1367 (Fed. Cir. 2015) (“We see no error in the Board’s rejection of Ariosa’s reliance, in its Reply submis- sions, on previously unidentified portions of a prior-art ref- erence to make a meaningfully distinct contention.”). Any argument not raised to the Board is forfeited, and we de- cline to consider it for the first time on appeal. In re Google Tech. Holdings, 980 F.3d 858, 863 (Fed. Cir. 2020). Netflix contends that the Board ignored several argu- ments allegedly raised in its petitions. First, for the “filter- ing” limitation in the ’720 patent, Netflix argues that its petition relied on (1) Pyle’s new manifest as disclosing this limitation (in addition to relying on Pyle’s pre-existing manifest), and alternatively (2) Marusi for performing this filtering assets step. Appellant’s Br. 38, 42–43. Second, for the “retrieving” limitation in the ’720 patent and ’515 pa- tent, Netflix argues the Board misinterpreted Lewis as a § 103 obviousness reference when the petition relied on Lewis as a § 102 anticipatory reference. Id. at 53. Finally, for the “generating” limitation in the ’515 patent, Netflix argues that the Board erred in treating the argument that Pyle’s new manifest could also satisfy the “generating” lim- itation as an improper reply argument that had no basis in the original petition. Id. at 45. As explained below, none of Netflix’s contentions has merit. I. “Filtering” Limitation Netflix’s petition plainly explained how the “filtering” limitation corresponded to Pyle’s selection of a pre-existing manifest. We see no discussion in the petition’s “filtering” section, however, of how Pyle’s creation of a new manifest meets this limitation. It was more than reasonable, then, for the Board to understand Netflix as only mapping Pyle’s pre-existing manifest embodiment, and not also its new manifest embodiment, to the “filtering” limitation. On Case: 22-1203 Document: 43 Page: 11 Filed: 10/25/2023 NETFLIX, INC. v. DIVX, LLC 11 appeal, Netflix points to the petition’s block quote from Pyle stating that the new manifest “can be optimized” based on certain features. Appellant’s Br. 36–37. But nothing in that quoted language itself signals to a reader that an optimized new manifest equates to “filtering the list of assets,” let alone that Netflix was advancing such an argument. And contrary to the dissent, the petition’s asso- ciated statement that “Pyle teaches the use of new mani- fest files that can be created based upon particular device(s) or capabilities,” likewise fails to indicate what it is about Pyle’s new manifest that discloses a list of assets that then gets filtered. J.A. 6046; see Dissent at 4. In stark comparison, the petition made it quite clear Netflix was focused on Pyle’s pre-existing manifest as teaching the “filtering the list of assets” limitation. When arguing that Pyle’s selection of a pre-existing manifest met this limitation, Netflix specifically stated “Pyle . . . filters lists of assets by selecting from the various manifests an appropriate manifest to send.” J.A. 6046–47 (emphasis added). Netflix thus showed it knew how to put forward a clear mapping of Pyle to the filtering limitation, but never connected Pyle’s new manifest to that limitation like it did for Pyle’s selection of a pre-existing manifest. While it is not strictly necessary for a petition to use the exact words of a limitation when making an argument, in this instance, the Board appropriately understood Netflix’s “filtering” section of the petition to be devoted to relying solely on Pyle’s pre-existing manifest. Moreover, even in its appel- late briefing and at oral argument, Netflix does not explain how the items selected to create Pyle’s new manifest could be regarded as “a list of assets” “wherein each asset is a different stream” associated with a piece of content, further underscoring the lack of clarity with Netflix’s new manifest argument. Oral Argument at 15:51–17:04. In sum, while the petition explained that Pyle disclosed two embodi- ments—a new manifest and a pre-existing manifest—the Case: 22-1203 Document: 43 Page: 12 Filed: 10/25/2023 12 NETFLIX, INC. v. DIVX, LLC petition’s explanation for how Pyle taught the filtering lim- itation was limited to just Pyle’s pre-existing manifest. The dissent cites the Board’s institution decision as ev- idence that the Board understood Netflix’s petition as ar- guing that Pyle’s new manifest met the “filtering” limitation. Dissent at 4–5. But the institution decision did nothing more than recognize that the petition described Pyle’s two manifest embodiments and focused on only the pre-existing manifest for “filtering.” In fact, the Board’s in- stitution decision never opined on the persuasiveness of any potentially-raised new manifest argument; its analysis was limited to the petition’s pre-existing manifest conten- tion, because that was the only relevant argument from Pyle for it to address. See No. IPR2020-00647, Paper No. 9 at 32 (P.T.A.B. Oct. 1. 2020) (Institution Decision) (noting for “filtering,” “[w]e do not agree, on this record, that Peti- tioner’s showing is deficient. Specifically, petitioner relies upon Pyle’s teaching that ‘composition component 210 can examine data included in request 420 and determine a suit- able or optimal [pre-existing] manifest, and select and transmit that manifest to the requesting device.’”). As for the other portion of the institution decision which the dis- sent relies upon for support, it lays out the Board’s analysis of Netflix’s separate “generating” limitation arguments, and not the “filtering” limitation in dispute here. See Dis- sent at 5–6 (citing Institution Decision at 35 relating to “generating” limitation). The dissent also points to another portion of the peti- tion where it sees Netflix as having made its “new mani- fest” argument. Dissent at 5. However, Netflix’s statement that “Pyle is teaching the generating of new manifest files by filtering the available list of assets . . .” is an argument Netflix made when mapping Pyle to the “generating” limi- tation, not the “filtering” limitation. J.A. 6052 (emphasis added), see also J.A. 6050 (showing heading of “generating” limitation). While the Board should review a petition ho- listically, it is not obligated to “cobble together assertions Case: 22-1203 Document: 43 Page: 13 Filed: 10/25/2023 NETFLIX, INC. v. DIVX, LLC 13 from different sections of a petition or citations of various exhibits in order to infer every possible permutation of a petitioner’s argument[].” Microsoft Corp. v. FG SRG, LLC, 860 F. App’x 708, 713 (Fed. Cir., 2021). In sum, we do not fault the Board for holding Netflix to the argument it chose to make in the “filtering” section of its petition, as opposed to reading in an additional potential “filtering” mapping from a different petition section related to a different claim limitation. 6 Turning to Netflix’s argument based on Pyle and Ma- rusi, Netflix argues the Board overlooked its alternative ar- gument relying on Marusi (and not Pyle) for the step of filtering assets. We do not agree; the Board could not have overlooked that argument because it was never there. The Board reasonably understood this portion of the petition to rely on Pyle for filtering a list of assets and use Marusi for its database teachings. To understand how Netflix’s petition relied on Marusi, it is helpful to revisit claim 1’s filtering limitation (empha- sis added): filtering the list of assets using the at least one de- vice capability using the playback server system, wherein the playback server system maintains a database of product identifiers and associated de- vice capabilities. Netflix initially relied on just Pyle to meet all the fea- tures of this limitation, by arguing that Pyle’s selection of a pre-existing manifest was the same thing as “filtering the list of assets,” and then contending that it would be “obvi- ous” for Pyle to include a server with a database of product identifiers and device capabilities: “a [skilled artisan] 6 Netflix’s arguments pointing to what it said in the sections of its petition challenging different claims (claims 2 and 3) fail for the same reasons. Appellant’s Br. 37–38. Case: 22-1203 Document: 43 Page: 14 Filed: 10/25/2023 14 NETFLIX, INC. v. DIVX, LLC would have found it obvious looking at the teachings of Pyle that the product identifiers and associated device capabili- ties be maintained by the server, such as in a database.” J.A. 6047. As a backup argument, Netflix then argued that to the extent Pyle “does not satisfy this limitation, it would have been obvious to combine the teachings of Pyle with Ma- rusi.” J.A. 6048. The petition then presented a drawn-out pastiche of block quotes from Marusi, but highlighted par- ticular, select language in bold to signal what the reader should focus on: Marusi’s “database” which stores “termi- nal capabilities information.” J.A. 6048–49. Netflix then concluded its argument with its sole articulation for which elements it relied on from Pyle and Marusi for the filtering limitation: “A [skilled artisan] would have been motivated to employ a known component (Marusi’s database of iden- tifiers and associated assets) in a predictable way (for Pyle to filter assets to obtain a subset in a format compatible with the requesting device).” J.A. 6049. The Board acknowledged that, at one point in the petition, Netflix stated that “Marusi filters from a database,” but neverthe- less reasonably concluded that, for the Pyle-Marusi combi- nation, Netflix “maintains reliance upon Pyle for filtering,” given Netflix’s concluding sentence mapping Pyle to filter- ing and Marusi to the database component, and the bolded language in block quotes highlighting Marusi’s database. ’720 Patent Decision, 2021 WL 4859625, at *14. Moreover, we note that the petition’s lone “Marusi filters” statement never suggests or explains how Marusi filters “a list of as- sets” as claimed. In sum, we reject Netflix’s contention that the Board was “absurd” in how it understood Netflix’s ar- gument. See Appellant’s Br. at 45. We do not wish to discourage petitioners from making arguments in the alternative. Rather, we emphasize that it is the petitioner’s burden to make clear when alternative arguments are being presented and to sufficiently expound on each one. The Board should not have to work as hard Case: 22-1203 Document: 43 Page: 15 Filed: 10/25/2023 NETFLIX, INC. v. DIVX, LLC 15 as Netflix wants to identify all arguments fairly presented in a petition. II. “Retrieving” Limitation Turning to the “retrieving . . . a list of assets” limita- tion, Netflix argues that the Board wrongfully viewed Lewis as the basis for a § 103 obviousness challenge that required modification to Lewis, when, in Netflix’s view, the petition argued Lewis disclosed this limitation. Appel- lant’s Br. 53–54. Specifically, Netflix argues that the peti- tion’s “use of language like ‘a [skilled artisan] would have found it obvious to retrieve a list of assets’ does not suggest that Lewis requires any modification.” Appellant’s Br. 61. Patent lawyers would be surprised by this statement. There is no word in patent law that sends a more unmis- takable signal that § 103, rather than § 102, is being in- voked than the word “obvious.” See Connell v. Sears, Roebuck & Co., 722 F.2d 1542, 1548 (Fed. Cir. 1983) (“[T]he need to determine obviousness presumes anticipation is lacking”); see also Jones v. Hardy, 727 F.2d 1524, 1529 (Fed. Cir. 1984) (“[T]hough anticipation is the epitome of obviousness, [they] are separate and distinct concepts.”). Nor did the Board err in requiring Netflix to articulate a modification of Lewis. As the Board explained, Netflix only relied on Lewis’s disclosure of a result—generating a dy- namic manifest file containing a list of URLs—but had failed to explain how Lewis’s disclosure of this result nec- essarily would have rendered obvious an intermediate pro- cess step (retrieving a list of assets). ’720 Patent Decision, 2021 WL 4859625, at *19. Netflix contends that the Board misunderstood its ar- gument, asserting the petition contemplated that creating a manifest containing URLs pointing to the selected pro- cessed video necessarily involves first retrieving a list of assets that reside in the manifest itself. Appellant’s Br. 60. In other words, according to Netflix, creating the manifest file and retrieving a list of assets are one and the same. We Case: 22-1203 Document: 43 Page: 16 Filed: 10/25/2023 16 NETFLIX, INC. v. DIVX, LLC conclude that it was eminently reasonable for the Board to interpret Netflix’s petition differently because (1) the peti- tion never made this sort of part-and-parcel inherency ar- gument and (2) the petition’s use of the word “obvious” suggests that retrieving a list of assets and creating a man- ifest are not the same. See J.A. 6070 (arguing that “[a] [skilled artisan] would have found it obvious to retrieve a list of assets” because Lewis teaches creation of a dynamic manifest). Netflix’s petition never established or suggested that Lewis’s creation of a manifest necessarily involves re- trieval of a list of assets. ’720 Patent Decision, 2021 WL 4859625, at *19. The dissent finds that Netflix sufficiently presented this argument because “if a method produces or uses a list, then the list needs to be retrieved. A list cannot be used without retrieving it.” Dissent at 7. That reasoning could have been helpful to avoid forfeiture if Netflix had offered it in its petition, but it did not. Moreover, in these patent claims, the generated list (“generating a top level index de- scribing each asset”) is a different, smaller list than the re- trieved list, due to the intervening “filtering the list of assets” step. See ’720 Patent at claim 1. Thus, if Netflix intended to argue that Lewis teaches (as opposed to ren- ders obvious) the retrieving limitation, some reasoning had to be presented for why Lewis necessarily retrieves an ini- tially larger list that would then go through a filtering pro- cess to arrive at a final, generated list. This absence of needed explanation reinforces our view that Netflix never raised this potential argument in its petition, and the Board correctly declined to assume that such an argument had been raised. III. “Generating” Limitation Finally, turning to the “generating . . . a top level index file” limitation in the ’515 patent, the Board correctly de- termined that Netflix’s reply improperly argued for the first time that Pyle’s creation of a new manifest satisfied Case: 22-1203 Document: 43 Page: 17 Filed: 10/25/2023 NETFLIX, INC. v. DIVX, LLC 17 the “generating” limitation. Netflix argues the Board over- looked its reliance on Pyle’s new manifest, but Netflix re- sorts to pointing to sections of its petition devoted to its analysis for the “retrieving” and “filtering” limitations. Ap- pellant’s Br. 46–47. Given the plain language of the ’515 patent petition and the substantially more developed anal- ysis of an analogous limitation in the ’720 patent petition, we disagree with Netflix. The ’515 patent petition plainly shows that Netflix ar- gued the “generating” limitation was met by Pyle’s trans- mission of a manifest into storage, which is entirely different from Pyle’s creation of a new manifest. Netflix argued: “A [skilled artisan] would have understood that the manifest file sent in response to a request for content is generated because the manifest file must be placed in memory for transmission to a client device.” J.A. 7043 (em- phasis added); see also J.A. 7042 (“Pyle further teaches transmitting a manifest file to the requesting device in re- sponse to the request for content.”). We agree with the Board and conclude that Pyle’s transmission of a manifest into storage was the only argument presented in the peti- tion. ’515 Patent Decision, 2021 WL 4859708 at *13. Net- flix points to various parts of the petition—including citations to Pyle’s Figure 4 and to passages in Pyle describ- ing creation of a new manifest—that allegedly describe how Pyle’s new manifest satisfies the “generating” limita- tions. Appellant’s Br. 48. While these portions of Pyle de- scribe a new manifest, Netflix only referred to these portions in citations to support the statement that “Pyle further teaches transmitting a manifest file to the request- ing device in response to a request for content.” J.A. 7042. It was reasonable for the Board to consider only the theory encapsulated in the plain words of this statement and de- cline to discern another theory from the citations alone. Moreover, in contrast to the ’515 patent petition, the ’720 patent petition clearly argued that Pyle’s new mani- fest met the ’720 patent’s corresponding “generating” Case: 22-1203 Document: 43 Page: 18 Filed: 10/25/2023 18 NETFLIX, INC. v. DIVX, LLC limitation. In the ’720 patent petition, Netflix argued, “Pyle teaches generating manifest files that are opti- mized . . . using the composition component 210 to create new manifests,” J.A. 6051 (emphasis added), and “[a] [skilled artisan] would have found it obvious to generate a top level index file . . . because as explained for limitations 1(c) and 1(d), Pyle teaches . . . creating new manifest files . . . .” J.A. 6050 (emphasis added). Comparing these arguments to those of the ’515 patent petition, we agree with the Board that, “[Netflix] knew how to raise the argu- ment (that creating a new manifest teaches generating a top level index file) if [Netflix] chose to do so.” ’515 Patent Decision, 2021 WL 4859708 at *14. Thus, the Board did not abuse its discretion in finding that Netflix improperly argued that Pyle’s new manifest met the “generating” lim- itation for the first time in its reply. CONCLUSION For the reasons stated above, all of Netflix’s arguments on appeal were not presented below and are thus forfeited. We affirm the Board’s decision upholding the challenged claims of the ’720 patent and ’515 patent. AFFIRMED Case: 22-1203 Document: 43 Page: 19 Filed: 10/25/2023 United States Court of Appeals for the Federal Circuit ______________________ NETFLIX, INC., Appellant v. DIVX, LLC, Appellee ______________________ 2022-1203, 2022-1204 ______________________ Appeals from the United States Patent and Trademark Office, Patent Trial and Appeal Board in Nos. IPR2020- 00647, IPR2020-00648. ______________________ DYK, Circuit Judge, dissenting. Contrary to the majority, I think that the Board im- properly ignored arguments that Netflix raised in its peti- tion. In IPRs we are confronted with situations in which parties without basis argue that arguments were pre- sented to and ignored by the Board, and equally with situ- ations in which the Board ignores arguments that were properly preserved. 1 In my view this case, at least in part, 1 See, e.g., Ericsson Inc. v. Intell. Ventures I LLC, 901 F.3d 1374, 1379–80 (Fed. Cir. 2018) (holding that the Board erred by “parsing [petitioner’s] arguments . . . with Case: 22-1203 Document: 43 Page: 20 Filed: 10/25/2023 2 NETFLIX, INC. v. DIVX, LLC falls in the latter category, and the Board improperly de- clined to consider arguments that Netflix raised in its peti- tion. I respectfully dissent from the majority’s contrary conclusion. I Netflix challenged claims of both the ’720 and ’515 pa- tents, which are directed at methods for generating “a top level index file” for use with media streaming. In media streaming, content (such as a movie) is typically stored as separate “streams” suitable for different device capabili- ties. ’720 patent col. 1 ll. 35–38. Thus, a playback device must be able to select an appropriate media file from the available streams. The specification of the ’720 and ’515 patents discusses “methods for automatically generating top level index files,” which “describe[] the location and content of container files containing streams of media.” ’720 patent col. 6 ll. 36–43. Claim 1 of both patents recites too fine of a filter”); Donner Tech., LLC v. Pro Stage Gear, LLC, 979 F.3d 1353, 1359 (Fed. Cir. 2020) (remanding be- cause it was “unclear whether the Board meaningfully con- sidered all of [petitioner’s] arguments and evidence”); Netflix, Inc. v. DivX, LLC, No. 2022-1043, 2023 WL 3115576, at *5 (Fed. Cir. Apr. 27, 2023) (holding that “the Board erred in not adequately assessing Netflix’s argu- ments regarding limitation 1[c]”); Netflix, Inc. v. DivX, LLC, 80 F.4th 1352, 1358 (Fed. Cir. 2023) (holding that “the Board abused its discretion in requiring Netflix to ex- plicitly identify the field of endeavor using specific lan- guage”); Provisur Techs., Inc. v. Weber, Inc., 50 F.4th 117, 123–24 (Fed. Cir. 2022); Microsoft Corp. v. Parallel Net- works Licensing, LLC, 715 F. App’x 1013, 1021 (Fed. Cir. Dec. 1, 2017); Uniloc 2017 LLC v. Facebook, Inc., No. 2019- 2159, 2021 WL 5370480, at *8–9 (Fed. Cir. Nov. 18, 2021); AMC Multi-Cinema, Inc. v. Fall Line Pats., LLC, No. 2021- 1051, 2021 WL 4470062, at *7 (Fed. Cir. Sept. 30, 2021). Case: 22-1203 Document: 43 Page: 21 Filed: 10/25/2023 NETFLIX, INC. v. DIVX, LLC 3 a method comprising “receiving” a request for content, “re- trieving” a list of assets associated with the content, “filter- ing” the list of assets using device capability, “generating” “a top level index file describing each asset in the filtered list of assets,” and “sending the top level index file” to the playback device. In the IPRs, Netflix relied on the Pyle and Lewis pub- lications as prior art. Pyle describes the use of a “mani- fest,” which is a file that “describe[s] the locations of various content segments.” ’720 Patent Decision, 2021 WL 4859625, at *8 (quoting Pyle). Pyle’s manifests can be “op- timized in connection with . . . particular devices or capa- bilities thereof.” Id. at *9. In one embodiment, a manifest can be “selected . . . from the set of available manifests” and in another a “new manifest” can be composed. Id. Lewis describes an embodiment wherein video content is pro- cessed and customized according to particular client device parameters, and “when [a] client device requests video con- tent represented by stored video segments, [a] dynamic manifest file server may provide [a] manifest file.” Petition for Inter Partes Review, Hulu, LLC v. DivX, LLC, at 63 (No. IPR2020-00647) (“Petition”) (quoting Lewis) (reference numbers omitted). II Netflix argues that the Board in three instances errone- ously determined that the petitioner had not made argu- ments that in fact were made in the petition. I agree with the majority as to one of these (though I view it as a close question)—that the Board did not abuse its discretion in finding that Netflix failed to raise an argument that the “generating” limitation of the ’515 patent was met by Pyle’s “new manifest.” But I disagree with the majority that Net- flix failed to make arguments in two other respects—re- garding the “filtering” limitation of the ’720 patent and the “retrieving” limitations of both the ’720 and ’515 patents. Case: 22-1203 Document: 43 Page: 22 Filed: 10/25/2023 4 NETFLIX, INC. v. DIVX, LLC In my view, the Board was required to address the merits of these arguments. A. “Filtering” Limitation of the ’720 Patent In its final written decision, the Board concluded that the “filtering” limitation was not met by the selection of an existing manifest. The Board found it “dispositive” that Netflix relied on Pyle’s selection of an existing manifest, and not the creation of a new manifest, to meet the “filter- ing” limitation. ’720 Patent Decision, 2021 WL 4859625, at *7, *15. The majority approves of the Board’s conclusion. Maj. Op. 6, 10. But, contrary to the majority, Maj. Op. 10, Netflix’s petition plainly presented an alternative argu- ment that Pyle, by generating a new manifest, met the ’720 patent’s “filtering” limitation, and the Board’s institution decision credited this argument. In the petition, under the heading “filtering the list of assets,” petitioner explained that Pyle’s “new manifest” teaches filtering. Petition, at 37 (emphasis added). The petition argued that Pyle “teaches filtering the lists of as- sets using at least one device capability” in one of two ways: (a) “Pyle teaches the use of new manifest files that can be created based upon particular device(s) or capabilities [new manifests]” and (b) “Pyle also teaches keeping sets of dif- ferent manifest[] files [existing manifests].” Id. at 38 (em- phasis added). In the paragraph discussing new manifest files, Netflix quoted from Pyle to show how the new mani- fest can be optimized based on device capabilities, network conditions, and user preferences. Id. Here, Netflix pre- sented its “new manifest” argument on the very page the majority cites as lacking it. Maj. Op. 11. Contrary to the majority, Maj. Op. 12, in its institution decision the Board explicitly recognized the argument that Pyle’s new manifest meets the “filtering” limitation. Under the heading for “Limitation 1[d],” which “recites ‘filtering the list of assets . . .,’” the Board recognized that “[f]irst, Petitioner contends Pyle ‘teaches the use of new manifest Case: 22-1203 Document: 43 Page: 23 Filed: 10/25/2023 NETFLIX, INC. v. DIVX, LLC 5 files that can be created based upon particular device(s) or capabilities,’” and the Board quoted Pyle’s “new manifest” disclosure. No. IPR2020-00647, Paper No. 9 at 28–29 (P.T.A.B. Oct. 1. 2020) (“Institution Decision”) (emphasis in original). Moreover, other aspects of the petition and the institu- tion decision reiterate the conclusion that the new manifest teaches “filtering.” Under the heading for the “generating” limitation, which follows the “filtering” limitation, Netflix explained at length that “Pyle is teaching the generating of new manifest files by filtering the available list of assets to include only a subset of assets based upon the product iden- tifier information,” and cited expert testimony in support. Petition, at 44 (emphasis added). Thus, Netflix’s petition further tied the new manifest to the “filtering” limitation. The institution decision similarly demonstrates the Board’s understanding of Netflix’s position. The Board rea- soned that, although DivX responded to the “existing man- ifest” argument in its preliminary response, the petition also raised a “new manifest” argument that DivX ignored, which was sufficient for institution: Additionally, Patent Owner’s argument ignores Pe- titioner’s contention that one of ordinary skill in the art would understand Pyle to teach generating new manifest files by “filtering the available list of assets to include only a subset of assets based upon the product identifier information, including for ex- ample the capabilities of the device.” On this rec- ord, Petitioner’s position is reasonable and supported by the ’720 patent and Dr. Reader’s tes- timony. Second, Patent Owner contends that Petitioner fails to explain how Pyle’s manifest file “describ[es] each asset in the filtered list.” Specifically, Patent Owner contends that Pyle “teaches a system for streaming content based on manifests that Case: 22-1203 Document: 43 Page: 24 Filed: 10/25/2023 6 NETFLIX, INC. v. DIVX, LLC already exist when the request for content is sub- mitted” and does not teach composing a new mani- fest in response to or based on a request for content. Patent Owner’s argument, however, fails to detract from Petitioner’s position, explained above, regard- ing filtering the available list of assets and Pyle’s teaching regarding optimizing a new manifest based on particular device capabilities. Institution Decision, at 35 (citations and parentheticals omitted) (emphasis in original). In its final written decision the Board backtracked, finding instead that Netflix’s petition presented only one argument—that Pyle teaches filtering by selecting an ex- isting manifest. The Board dismissed Netflix’s “new man- ifest” position, judging that Netflix presented only a “single-paragraph discussion,” which “does not (a) ex- pressly assert that Pyle’s creation of a new manifest in- volves ‘filtering’ or (b) explain how Pyle’s new optimized manifest teaches filtering.” ’720 Patent Decision, 2021 WL 4859625, at *14 (citations omitted) (emphasis in original). The final written decision does not acknowledge the peti- tion’s express new manifest argument under the filtering heading or the Board’s express statements in its institution decision regarding Pyle’s teaching of “filtering” by creating new manifest files. See Institution Decision, at 28–29, 35. When the Board recognizes two arguments in its insti- tution decision but addresses only one on the merits, a re- mand is required. Google LLC v. Conversant Wireless Licensing S.A.R.L., 753 F. App’x 890, 895 (Fed. Cir. 2018) (“In its institution decision, the Board clearly and correctly understood that Petitioners made two distinct arguments in their petition . . . . Yet, in its final written decision, the Board concluded that Petitioners’ arguments failed with- out even discussing Petitioners’ [first] argument.”). Here, the Board recognized in the institution decision the alter- native argument that Pyle teaches that the “new manifest” Case: 22-1203 Document: 43 Page: 25 Filed: 10/25/2023 NETFLIX, INC. v. DIVX, LLC 7 “generates top level index files by filtering assets,” yet did not address this aspect of the institution decision in the fi- nal written decision. Institution Decision, at 35 (quotation omitted); see also id. at 28–29. The Board cannot contra- dict itself without explanation. The majority does not rec- ognize the evident contradiction between the Board’s institution decision and its final written decision or the Board’s failure to explain the contradiction in its final writ- ten decision. I would remand for the Board to consider the merits of Netflix’s “new manifest” argument for claims 1–5 and 12 of the ’720 patent. B. “Retrieving” Limitations of the ’720 and ’515 Patents The “retrieving” limitation of both the ’720 and ’515 pa- tents recites “retrieving, using the playback server [sys- tem,] a list of assets associated with the identified piece of content . . . .” Netflix relied on Lewis as demonstrating this limitation. The Board concluded that the argument failed because Netflix did not show how it would be obvious to modify Lewis to retrieve a list of assets: Fundamentally, Petitioner fails to provide any rea- son in the Petition as to why one of ordinary skill in the art would have found it obvious to retrieve a list of assets based on Lewis. Instead of providing a reason as to why retrieving a list of assets would have been obvious, Petitioner points to a result achieved by Lewis—generating a dynamic mani- fest file that contains a list of URLs to container files containing content. ’720 Patent Decision, 2021 WL 4859625, at *19; ’515 Patent Decision, 2021 WL 4859708, at *22 (emphasis in original). The majority approves this decision. Maj. Op. 15. How- ever, if a method produces or uses a list, then the list needs to be retrieved. A list cannot be used without retrieving it. Case: 22-1203 Document: 43 Page: 26 Filed: 10/25/2023 8 NETFLIX, INC. v. DIVX, LLC Netflix adequately raised an argument that the “retriev- ing” limitation was met without modifying Lewis. In both petitions, Netflix argued: A POSITA would have found it obvious to retrieve a list of assets using the playback server system be- cause Lewis teaches that the manifest file server and rule resolution server generate[s] a dynamic file manifest, and Lewis teaches that a dynamic manifest file contains a list of URLs to container files containing content . . . . In other words, be- cause a manifest file is a file that contains a list of URLs that point to container files, a POSITA would have found it obvious that the manifest file server and rule resolution server retrieve a list of assets because the manifest file server and rule resolution server ultimately produce a list of assets to the cli- ent device in the form of a manifest file. Petition, 62–63; J.A. 7070 (citations omitted) (emphasis added). Netflix explained how Lewis alone teaches the “retriev- ing” limitations because “a POSITA would have found it obvious that the manifest file server and rule resolution server retrieve a list of assets.” Petition, 62–63; J.A. 7070. Netflix’s argument was not that a POSITA would find it obvious to modify Lewis to retrieve a list of assets. Rather, it was that a “POSITA would have found it obvious” that Lewis already did “retrieve a list of assets” as it produced its manifest file to the client. In Netflix’s argument, “re- trieve” is in the present tense, and there is no hint that Netflix thought Lewis needed to be modified. III Contrary to the Board’s conclusions, Netflix’s petitions adequately raised arguments that the “filtering” limitation in the challenged claims of the ’720 patent (based on Pyle) and the “retrieving” limitations in the challenged claims of Case: 22-1203 Document: 43 Page: 27 Filed: 10/25/2023 NETFLIX, INC. v. DIVX, LLC 9 both patents (based on Lewis) were obvious. I would re- mand for the Board to consider Netflix’s arguments regard- ing the ’720 patent’s “filtering” limitation and the “retrieving” limitations with respect to claims 1–6 and 12 of the ’720 patent and claims 1–6, 8–10, and 13 of the ’515 patent. I respectfully dissent.