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Patent Litigation Prior Art Inventors

McDermott Will & Emery

Back to the Future: Expert Can Be Skilled Artisan Based on Later-Acquired Knowledge

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The US Court of Appeals for the Federal Circuit clarified that a technical expert does not need to have been a person of ordinary skill in the art (POSITA) at the time of the invention. Instead, they may rely on...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - August 2024

Sanho Corp. v. Kaijet Technology International Limited Inc., Appeal No. 2023-1336 (Fed. Cir. July 31, 2024) In our Case of the Week, the Federal Circuit held that the private but non-confidential sale of thousands of...more

Jones Day

Shifting Burden Dooms Patent Owner

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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

Erise IP

Eye on IPRs, April 2024: PTAB’s Analogous Art Finding Upheld by Federal Circuit, Blockchain Gemstone Identifying Process Patent...

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Every month, Erise’s patent attorneys review the latest inter partes review cases and news to bring you the stories that you should know about: Federal Circuit Affirms PTAB’s Analogous Art Finding - As IP Watchdog...more

WilmerHale

Federal Circuit Patent Watch: Raising a new prior art reference in an IPR as a joined petitioner

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Precedential and Key Federal Circuit Opinions - CYWEE GROUP LTD. v. ZTE (USA) INC., LG ELECTRONICS INC. [OPINION] (2021-1855, 1/18/2023) (Prost, Hughes, and Stoll) - Prost, J. The Court affirmed the Patent Trial and...more

Jones Day

PTAB Doubles Down on Interference Estoppel Issue

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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

Jones Day

Patent Owner Unable to Change Inventorship During Remand

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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

WilmerHale

Federal Circuit Patent Watch: Patent owner assumes temporary burden of production when attempting to antedate prior art

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Precedential Federal Circuit Opinions - BLUE GENTIAN, LLC v. TRISTAR PRODUCTS, INC. (21-2316, 6/9/23) (Prost, Chen, and Stark) - Prost, J. The Court affirmed the district court’s decision finding that a nonparty...more

McDermott Will & Emery

Obviously Prima Facie Case Overcome by Secondary Considerations

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The US Court of Appeals for the Federal Circuit affirmed the Patent Trial & Appeal Board, holding that the Board did not err in finding certain challenged claims nonobvious and not unpatentable based on a showing of several...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - May 2023 #3

Medtronic, Inc. et al. v. Teleflex Innovations S.A.R.L., Appeal Nos. 2021-2356, -2358, -2361, -2363, and -2365 (Fed. Cir. May 24, 2023) In this week’s Case of the Week, a split panel of the Federal Circuit considered...more

McDonnell Boehnen Hulbert & Berghoff LLP

Am I sunk? Where are all the safe harbors against the “on sale” bar?

In part 1 of this series, I introduced the “on sale bar” and described how a commercial sale or offer for sale can negate patentability, according to the doctrine the Supreme Court established in Pfaff v. Wells Elecs., Inc....more

Bradley Arant Boult Cummings LLP

Searching for Claim Support in a Patent Specification? You Better Blaze a Trail

Last month the Federal Circuit affirmed a PTAB inter partes review (IPR) decision finding that the University of Minnesota’s patent claim directed to the anti-cancer drug sofosbuvir was not adequately supported by the written...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

McDermott Will & Emery

Prior Art Citation to Inventors’ Report Not “By Another” for § 102(e)

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The US Court of Appeals for the Federal Circuit found that a prior art patent’s summarization of a report authored by the inventors of a patent challenged under inter partes review (IPR) did not constitute a disclosure “by...more

McDonnell Boehnen Hulbert & Berghoff LLP

ClearOne, Inc. v. Shure Acquisition Holdings, Inc. (Fed. Cir. 2022)

Self-similarity is a characteristic found in many physical, natural, and human-made systems.  In short, it describes a class of structures or behaviors that are at least partially-invariant to time or scale.  Thus, these...more

McDermott Will & Emery

Co-Authorship ≠ Co-Inventorship but Can Be Supportive of Inventive Contribution

The US Court of Appeals for the Federal Circuit vacated and remanded a Patent Trial & Appeal Board (Board) decision because it failed to resolve fundamental testimonial conflict relating to inventive contribution and complete...more

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

PTAB Strategies and Insights Newsletter: May 2022: Split Panel Weighs General Skepticism Differently in Obviousness Inquiry

In a recent opinion by the Federal Circuit, Auris Health, Inc. v Intuitive Surgical Operations, Inc., Case 2021-1732, the panel split on the weight of general industry skepticism in an obviousness analysis and split on...more

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

PTAB Strategies and Insights Newsletter: May 2022

The PTAB Strategies and Insights newsletter provides timely updates and insights into how best to handle proceedings at the USPTO. It is designed to increase return on investment for all stakeholders looking at the entire...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

Buckingham, Doolittle & Burroughs, LLC

A Fine Line Between Co-Owner and Infringer

Can an employee’s unpatentable “idea”, conceived under a duty to assign intellectual property, give rise to co-ownership in an invention conceived after employment terminates? That was the question on appeal in Bio-Rad...more

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

PTAB Strategies and Insights - May 2021

The PTAB Strategies and Insights newsletter provides timely updates and insights into how best to handle proceedings at the USPTO. It is designed to increase return on investment for all stakeholders looking at the entire...more

Jones Day

From Respiratory Care to Power Plants: The PTAB on Analogous Art

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We recently wrote about the Federal Circuit’s 2020 decision in Donner Technology, LLC. v. Pro Stage Gear, LLC, where the Federal Circuit vacated the PTAB’s denial of an obviousness challenge due to its finding that the prior...more

Rothwell, Figg, Ernst & Manbeck, P.C.

The Federal Circuit Issues Decision Clarifying the Qualifying Test for Analogous Art

On November 9, 2020, the Federal Circuit vacated and remanded a decision by the United States Patent Office Patent Trial and Appeal Board (“PTAB”) in Donner Tech., LLC v. Pro Stage Gear, LLC, holding that the PTAB applied an...more

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