948 F.3d 1330
Fed. Cir.
2020
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Background

  • The '806 patent claims a hybrid media-delivery method: a control information file lists multiple alternative files per segment and allows a client to select a compatible format and download the next file concurrently with playback of the current file.
  • Claim 1 recites steps including downloading/parsing a control file, identifying alternative files for a given segment, selecting files based on system restraints, retrieving a determined file to begin playback, and—if multiple files are required—concurrently retrieving a next file and using it to continue playback.
  • Relevant prior art: SMIL 1.0 (specifies alternative-file selection via a "switch" element and sequential playback via "seq") and Hua (describes pipelining: play segment Sn while downloading S(n+1)).
  • Google petitioned for IPR arguing anticipation by SMIL and obviousness over SMIL (and, in argument, relying on general knowledge of pipelining); the PTAB instituted on anticipation, obviousness over SMIL, and sua sponte on obviousness over SMIL+Hua.
  • The Board found claims 1–11 obvious over SMIL (and for the same reasons over SMIL+Hua). Philips appealed, contending (1) the Board unlawfully instituted an unpled ground (SMIL+Hua), (2) the Board improperly relied on general knowledge to fill a missing limitation, and (3) the obviousness findings lack substantial evidence.
  • The Federal Circuit held the Board erred in instituting the SMIL+Hua ground (not in Google’s petition) but affirmed the Board’s ultimate determination that claims 1–11 are unpatentable as obvious (based on SMIL and the skilled artisan’s knowledge).

Issues

Issue Philips' Argument Google's Argument Held
Whether the PTAB may institute an IPR on a ground not pleaded in the petition (SMIL+Hua). Board lacked authority to institute an unpled obviousness ground; petition defined the proceeding. Board acted within discretion and only used SMIL+Hua for clarity using the same arguments/evidence. Court: Institution on an unpled ground was error; petition, not the Board, defines the review's contours (SAS controls).
Whether the Board improperly relied on "general knowledge" to supply a missing claim limitation. §311(b) limits IPR to patents/printed publications so Board cannot use general knowledge to supply limitations; reliance here echoes Arendi. General knowledge of a skilled artisan is proper in obviousness under §103 and may supply missing limitations when supported by evidence. Court: Using general knowledge is permissible in IPR obviousness analyses when supported by evidence; no §311(b) bar and Arendi did not preclude use here because there was corroborating expert evidence and Hua.
Whether substantial evidence supports the Board's obviousness finding over SMIL (and SMIL + artisan knowledge). Board lacked substantial evidence that combining SMIL with pipelining would motivate or enable the claimed steps; reliance on patentees' specification and assumptions was improper. Expert testimony, Hua, and the patent’s own admissions support motivation to combine, reasonable expectation of success, and enablement. Court: Substantial evidence supports the Board's findings that a skilled artisan would combine SMIL with known pipelining, so claims 1–11 are obvious; reliance on the specification's admissions was acceptable.

Key Cases Cited

  • SAS Inst. Inc. v. Iancu, 138 S. Ct. 1348 (2018) (a petition, not the Director/PTAB, defines the contours of an IPR institution)
  • KSR Int'l Co. v. Teleflex, Inc., 550 U.S. 398 (2007) (establishes obviousness framework and role of common sense/general knowledge)
  • Arendi S.A.R.L. v. Apple Inc., 832 F.3d 1355 (Fed. Cir. 2016) (limits use of common sense absent reasoned analysis and evidentiary support)
  • Anacor Pharm. Inc. v. Iancu, 889 F.3d 1372 (Fed. Cir. 2018) (Board may rely on evidence beyond petition to support grounds raised in petition)
  • Genzyme Therapeutic Prods. v. BioMarin Pharm., 825 F.3d 1360 (Fed. Cir. 2016) (similar to Anacor re: evidence not in petition for raised grounds)
  • Rambus Inc. v. Rea, 731 F.3d 1248 (Fed. Cir. 2013) (standards of review: factual findings for substantial evidence)
  • Purdue Pharma L.P. v. Epic Pharma, LLC, 811 F.3d 1345 (Fed. Cir. 2016) (obviousness is a legal conclusion based on underlying factual findings)
  • Dow Jones & Co. v. Ablaise Ltd., 606 F.3d 1338 (Fed. Cir. 2010) (upholding use of general knowledge to support obviousness)
  • PharmaStem Therapeutics, Inc. v. ViaCell, Inc., 491 F.3d 1342 (Fed. Cir. 2007) (patent specification admissions can be relied on in obviousness analysis)
  • Sirona Dental Sys. GmbH v. Institut Straumann AG, 892 F.3d 1349 (Fed. Cir. 2018) (PTAB may read the petition broadly but is not free to institute an entirely different ground)
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