• F5, Inc. v. Sunstone Information Defense Inc.Other
  PTAB · Jul 28, 2023 · IPR2022-00483 · APJ Jon M Jurgovan · IPR · Final written decision

  The Board cancelled original claims 1–18 and 20–22, but denied substitute claims 23–43 for lack of written-description support.

  RulingsFinal written decision

  • 112 supportMotion to amend, deniedDenied

    “37 C.F.R. §§ 42.121(b)(1) and (2). The patent owner bears the burden to show, by a preponderance of the evidence, that a motion to amend complies with these requirements. 37 C.F.R. § 42.121(d)(1). “[T]he motion [to amend] must set forth written description support for each proposed substitute claim as a whole, and not just the features added by the amendment.” Lectrosonics, Inc. v. Zaxcom, Inc., IPR2018-01129, Paper 15, 8 (PTAB Feb. 25, 2019) (precedential). B. Lack of Written Description Support” slip op. at 9

  • Disclosure Requirements (§112) › Written description (Ariad)Written description inadequateNot shown unpatentable

    “the ’556 application does not provide written description support for the proposed substitute claims. For limitations 23e, 30e, and 37e of respective independent proposed claims 23, 30, and 37, Patent Owner points to paragraphs 11, 37, 60, 78, 83–85, 90, 109–113, 119–130, 150, and Figure 11 of the ’556 application as providing written description support. MTA 6–7, 10, 14–15; Reply 2–3. Reviewing these paragraphs, however, we find no description of the subject matter recited in limitation 23e, which recites “responsive to determining that the [first] variation of the soft information change how the hard information is displayed at the client device, determine a second variation of the soft information.” Nor do we find in those passages written description of the subject matter recited in the similar language of limitations 30e and 37e. Specifically, paragraphs 11 and 37 of the ’556 application address prediction of the response message expected from the client device (similar to limitations 23h–23j, 30h–30j, and 37h–37j, which were added in the MTA to the original claims of the ’759 patent). Paragraphs 60, 78, 83, and 84 describe specific ways to vary soft messaging to establish secondary communications between a server and a client device to detect the presence of a malicious application. Paragraph 85 describes a priori recording of soft information variations to create large sets of composite (hard and soft) messages to be transmitted together. Paragraph 85 also states that, alternatively, the hard and soft messages may be transmitted separately. Paragraph 90 mentions use of “spaghetti” code and soft formatting to make it difficult for malicious applications to alter, replace, or counterfeit in real time. Paragraphs 109 to 113 mention various ways to vary soft information and soft messaging, such as varying or selecting different characters sets, font type, color, or weight, and point sizes from session to session, and predicting the response from the client device to compare with the actual response. Paragraphs 119 to 125 and Figure 11 address soft messaging using un-rendered page elements, and paragraphs 126 to 130 describe soft messaging using graphical elements. Paragraph 150 discusses identifying compatible soft information and selecting a variation of soft information to prevent malicious applications from reverse engineering the soft messaging used to validate communications. None of these disclosures describe the “trial and error” or “testing” approach of limitations 23e, 30e, and 37e in which, responsive to determining that a first variation of the soft information changes how the hard information is displayed at the client device, the security processor creates a second variation of soft information (which is included in the message to the client device if it does not vary how the hard information is displayed—see limitations 23f–23g, 30f–30g, and 37f–37g) to prevent a malicious application from interacting with the hard information. Accordingly, Patent Owner fails to meet its burden to show that limitations 23e, 30e, and 37e of independent proposed substitute claims 23, 30, and 37, as presented in the Motion to Amend, have written description support in the ’556 application, as required under 37 C.F.R. § 42.121(b)(2).” slip op. at 11

  § 112 disclosure
  Patents in suitUS 10,230,759

Holdings, summaries, rulings, issues, outcomes, winners and claim constructions shown for a decision were generated by a large language model reading the opinion. They are a guide to the decision, not the decision. Confirm every one against the court's own text before relying on it. Outcomes read from the patent owner’s side. Party names are extracted from the decision and are missing on about 900 short Director denials and scans, which carry the trial number instead.