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Private Sale Not Necessarily Public Disclosure Under Section 102(b)(2)(B)

In Sanho Corp. v. Kaijet Technology International Limited, Inc, the Federal Circuit affirmed the PTAB’s decision finding obvious all challenged claims of the ‘429 patent, which relates to a device that provides ports for...more

No Requirement to Raise All Arguments in Rehearing Request

The Federal Circuit in Voice Tech Corp. v. Unified Patents, LLC, No. 2022-2163 (Fed. Cir. Aug. 1, 2024) (Lourie, Chen, and Cunningham), affirmed the PTAB’s determination that claims of Voice Tech Corp.’s (“Voice Tech”) U.S....more

LKQ v. GM: PTAB and Examiner Guidance on Design Patent Obviousness from USPTO

Those following this blog knew change was coming to design patent obviousness in the LKQ v. GM decision by the en banc Federal Circuit. In its May 21, 2024 decision, the court overruled the long-standing Rosen-Durling test...more

Shifting Burden Dooms Patent Owner

In a Final Written Decision, the PTAB declared claims of a patent unpatentable after finding the patent was not entitled to the earlier priority date of the anticipatory reference in Platinum Optics Technology, Inc. v. Viavi...more

Institution Denied For Lack of Sufficient Structure

The Board declined to institute inter partes review because Petitioner failed to identify adequate corresponding structure in the challenged patent that performed the function of claim limitation that was to be construed...more

Institution Denial Vacated to Reconsider Prior Art Drawing

On April 5, 2024, Director Vidal vacated and remanded the Patent Trial and Appeal Board’s (PTAB’s) denial of institution of inter partes review (IPR) where the Petitioner relied on a drawing in a prior art patent document to...more

USPTO Announces Request for Comments: AI's Impact on Prior Art and the PHOSITA

The USPTO is seeking public input on whether prior art must be authored by humans and how, if at all, AI-generated disclosures should be treated differently from non-AI generated disclosures....more

Common Ownership Exception Leads to Petition Denial

The PTAB recently denied Trend Micro, Inc.’s (Petitioner) inter partes review petition against Open Text, Inc. and Webroot, Inc. (Patent Owners) challenging all claims of U.S. Pat. No. 8,201,243. Trend Micro, Inc. v. Open...more

Claim Construction Dispositive In Patentability Determination

It goes without saying that claim construction is an important issue, but the PTAB’s recent decision in Netflix, Inc. v. DIVX, LLC, IPR2020-00558, Paper 66 (PTAB Feb. 22, 2024), shows not only that reasonable minds can differ...more

Federal Circuit Affirms Claim Construction and How It Applies

In Pacific Biosciences of California, Inc. v. Personal Genomics Taiwan, Inc., the Federal Circuit recently affirmed two PTAB decisions in IPRs filed by Pacific Biosciences of California, Inc. (PacBio) that challenged a...more

Conception and Reduction to Practice Dates Matter

In a recent decision, the Patent Trial and Appeals Board found that the disputed claims regarding transferring digital content were not unpatentable under 35 U.S.C. § 103(a) after determining that the prior art cited by the...more

Failure to Prove “Prior” Art Results in Denial

The PTAB recently denied IPR institution in Sophos v. Open Text because the petitioner failed to show a reasonable likelihood that the asserted reference was, in fact, prior art.  IPR2023-00732, Paper 23 (November 2, 2023)....more

PTAB Doubles Down on Interference Estoppel Issue

The Patent Trial and Appeal Board held all challenged claims of IGT’s patent unpatentable as obvious over two prior art patents. Zynga Inc. v. IGT, IPR2022-00199-32. In doing so, the PTAB further held that, contrary to...more

Patent Owner Unable to Change Inventorship During Remand

At the Inter Partes review trial, Patent Owner attempted to swear behind Petitioner’s primary prior art reference by showing that the inventors of the asserted patents had conceived of the invention before the priority date...more

Common Inventorship And Technology Insufficient For 325(d) Denial

The PTAB recently declined to apply Section 325(d) and instituted inter partes review after a patent owner unsuccessfully argued that the petition relied on substantially the same prior art as that which the Office had...more

Explanations, Not Bare Citations, Needed To Establish Prior Art Date

Although provisional applications can be used to secure an earlier date for 102(e), the petitioner bears the burden of production in establishing a prior art date for the asserted prior art. The Patent Trial and Appeal Board...more

PTAB Denial of Inter Partes Review under §325(d)

The Patent Trial and Appeal Board (“PTAB” or “Board”) recently denied inter partes review (IPR) of an electrocardiography monitor patent under 35 U.S.C. §325(d), finding that the same or substantially the same prior art or...more

Proof of Prior Art Requires Sufficient Corroboration By Credible Evidence

Proof of prior art is an issue that often arises in inter partes and post grant review proceedings before the PTAB. In a recent decision, the Federal Circuit explained the quantum of proof that is required to establish prior...more

Limited Stipulation Results In Fintiv Denial

Patent Owner, IP Bridge, filed a patent infringement suit against Petitioner, Ericsson, for infringement of seven of its patents directed at radio communication between a base station and a mobile station and related...more

Error Apparent? Federal Circuit Tackles Obvious Errors in Prior Art

In LG Electronics v. Immervision, the Federal Circuit clarified the standard for evaluating whether a prior art reference includes an obvious typographical error. See 39 F.4th 1364, 1365 (Fed. Cir. 2022). Under this...more

PTAB News and Notes

Within the past few weeks, the PTAB has issued new guidance addressing a number of important issues including the use of applicant admitted prior art, the Director review process, and changes to PTAB hearings going...more

Coordinate Arguments To Avoid Procedural Bars

In a recent decision, 25 F.4th 1035 (Fed. Cir. 2022), the Federal Circuit dismissed for lack of jurisdiction an appeal of the PTAB’s decision that estopped a Petitioner from maintaining a third IPR that challenged the same...more

Reexam References Count In Section 325(d) Analysis

The Board denied post grant review in Palo Alto Networks, Inc. v. Centripetal Networks, Inc. under 35 U.S.C. § 325(d) after applying the Advanced Bionics framework as informed by the factors outlined in Becton. IPR2021-01520...more

Don’t Save The Best: Federal Circuit Confirms Broad IPR Estoppel

The patent fight between Caltech and Broadcom/Apple made waves this month when the Federal Circuit vacated the $1.1 billion infringement award that Caltech had won in district court....more

CAFC Holds Applicant Admitted Prior Art Cannot be the Basis of an IPR Ground

Section 311(b) limits inter partes review to “ground[s] that could be raised under section 102 or 103 and only on the basis of prior art consisting of patents or printed publications.” 35 U.S.C. § 311(b) (emphasis added). An...more

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