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Patent Litigation Testimony Inventors

Jones Day

Inventor Testimony of Reduction Date Leads to Denial

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The Patent Trial and Appeal Board (PTAB) denied institution of an inter partes review (IPR) brought by Par-Kan Company, LLC against Unverferth Manufacturing Company regarding U.S. Patent No. 8,967,940 (“the ‘940 patent”). ...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2022 Decisions: Google LLC v. IPA Technologies Inc., 34 F.4th 1081...

Google petitioned for IPR of two patents owned by IPA. Each of the asserted grounds relied on the Martin reference. Martin lists as authors the two inventors of the challenged patents and a third person, Dr. Moran. During...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2022 Decisions

As part of the recovery from the global COVID-19 pandemic, the U.S. Court of Appeals for the Federal Circuit took steps to return to normal operations. It began requiring live oral arguments in August 2022 and, by November,...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

2021 PTAB Year in Review: Analysis & Trends: Developments in Antedating Asserted Art at the PTAB

USPTO Patent Trial and Appeal Board (PTAB) decisions in 2021 show that antedating a prior-art reference remains a viable option to knock out a ground in an inter partes review (IPR) petition—patent owners were successful in...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

2021 PTAB Year in Review: Analysis & Trends

[co-author: Jamie Dohopolski] Love it or hate it, ignore the USPTO Patent Trial and Appeal Board (PTAB) at your peril. The introduction of the PTAB as part of the America Invents Act over ten years ago has forever changed...more

Akin Gump Strauss Hauer & Feld LLP

Challenge to a Named Inventor’s Credibility on Case-Dispositive Issue Warrants Live Testimony in IPR

The Patent Trial and Appeal Board allowed live testimony in MPOWERED INC. v. LuminAID Lab, LLC, IPR2018-01524, on November 1, 2019, where a panel granted Patent Owner’s Motion for Live Testimony from a named inventor of the...more

McDermott Will & Emery

Uncorroborated Inventor Testimony Cannot Establish Earlier Conception Date

The US Court of Appeals for the Federal Circuit affirmed a Patent Trial and Appeal Board (PTAB) determination that the patent owner could not establish an earlier date of invention based on evidence originating from the...more

Jones Day

No Basis For Broad Exclusion Of Inventor Testimony

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The Board has broad discretion to determine how much weight should be given to inventor testimony, but as long as the testimony does not relate to the inventor’s opinion about the meaning of a claim term, there is no basis...more

Schwabe, Williamson & Wyatt PC

Fresh From the Bench: Precedential Patent Cases From the Federal Circuit

In EmeraChem v Volkswagen the Circuit reverses a determination of obviousness because the ?Board did not provide the patentee with an adequate opportunity to address a prior art reference ?that formed a principal basis for...more

McDermott Will & Emery

Inventor Testimony Without Corroborating Evidence Is Insufficient to Prove of Reduction to Practice

McDermott Will & Emery on

K-40 Electronics, LLC v. Escort, Inc. - Addressing the sufficiency of corroborating evidence to prove earlier reduction to practice, the Patent Trial and Appeal Board (PTAB) found that an inventor’s testimony regarding...more

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