Understanding the Impact of IPR Estoppel and PTAB Discretionary Denials — Patents: Post-Grant Podcast
What Were the Cooler Wars? (Part 2) — No Infringement Intended Podcast
A Guide to SEP: Standard Essential Patents for Tech Startups
Wolf Greenfield’s New Shareholders
5 Key Takeaways | Building a Winning Evidentiary Record at the PTAB (and Surviving Appeal)
Wolf Greenfield Attorneys Review 2024 and Look Ahead to 2025
5 Key Takeaways | Alice at 10: A Section 101 Update
Director Review Under the USPTO's Final Rule – Patents: Post-Grant Podcast
AGG Talks: Cross-Border Business Podcast - Episode 20: Mastering ITC Section 337 Investigations
Navigating Intellectual Property Challenges in the Renewable Energy Sector - Energy Law Insights
Patent Considerations in View of the Nearshoring Trends to the Americas
Tonia Sayour in the Spotlight
New Developments in Obviousness-Type Double Patenting and Original Patent Requirements — Patents: Post-Grant Podcast
3 Key Takeaways | What Corporate Counsel Need to Know About Patent Damages
5 Key Takeaways | Rolling with the Legal Punches: Resetting Patent Strategy to Address Changes in the Law
Meet Meaghan Luster: Patent Litigation Associate at Wolf Greenfield
Legal Alert: USPTO Proposes Major Change to Terminal Disclaimer Practice
PODCAST: Williams Mullen's Trending Now: An IP Podcast - Artificial Intelligence Patents & Emerging Regulatory Laws
Are Your Granted Patents in Danger of a Post-Grant Double Patenting Challenge?
Patent Litigation: How Low Can You Go?
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
On June 30, 2025, the U.S. Court of Appeals for the Federal Circuit vacated a decision by the U.S. Patent Trial and Appeal Board (the “Board”) and remanded the case for further proceedings using a narrower construction of the...more
The US Court of Appeals for the Federal Circuit affirmed the Patent Trial & Appeal Board’s rejection of a proposed reissue claim for being broader than the original claim, denying the inventors’ argument that the analysis...more
Bearbox LLC v. Lancium LLC, Appeal No. 2023-1922 (Fed. Cir. Jan. 13, 2025) In this week’s Case of the Week, the Federal Circuit affirmed a district court’s determination that appellants Bearbox and Austin Storms—Bearbox’s...more
While Artificial Intelligence (AI) solutions, such as predictive AI, have been around for decades, generative AI systems are recent innovations with far reaching implications for patent law. Generative AI, such as ChatGPT,...more
In its first precedential opinion of 2025, Honeywell v. 3G Licensing, No. 2023-1354, the Federal Circuit held that a person of ordinary skill in the art (POSA) needs not to have the same motivation as the inventor in an...more
As 2024 draws to a close, several crucial developments — some aimed at modernizing long-standing legal practices, others addressing emerging challenges — have reached patent law. Originally published in Law360 - December...more
The Patent Trial and Appeal Board determined that a reference could be used as prior art because patent owner failed to provide sufficient evidence that the prior art’s disclosure was invented by all four named inventors, and...more
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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