Understanding the Impact of IPR Estoppel and PTAB Discretionary Denials — Patents: Post-Grant Podcast
Podcast: IP(DC): Inside Patent Reform Efforts, Anticipated Federal Circuit Appeals, and Patent Cases of the Upcoming Supreme Court Term
Is the Patent Litigation Boom Coming to an End?
The US Court of Appeals for the Federal Circuit recently issued a decision that held for the first time that principles of prosecution history disclaimer apply to design patents, aligning design patent law more closely with...more
In a pivotal ruling for patent damages and standard-essential patent (SEP) litigation, the Federal Circuit vacated a $300 million award against Apple in a long-standing dispute with Optis Cellular Technology, LLC. See Optis...more
On June 11, 2025, the United States Court of Appeals for the Federal Circuit affirmed the Patent Trial and Appeal Board (PTAB) decision invalidating two patents owned by Agilent Technologies. The patents at issue, U.S. Patent...more
As we predicted in our 2023 report, 2024 was a banner year for design rights in the U.S. and elsewhere. In last year’s report, we noted that the U.S. Court of Appeals for the Federal Circuit (CAFC) agreed to consider en banc...more
Platinum Optics Tech. Inc. v. Viavi Solutions Inc., 2024 WL 3836107 (Fed. Cir. 2024) - On August 24, 2024, the United States Court of Appeals for the Federal Circuit (CAFC) dismissed an appeal for lack of standing after a...more
Disavowal can occur when a patent holder disavows the full scope of claim terms in the specification or during prosecution (e.g., through the doctrine of prosecution history estoppel). In either event, disavowal requires...more
On July 25, 2016, the Court of Appeals for the Federal Circuit (CAFC) held in In re Magnum Oil Tools International (Newman, O’Malley & Chen) that the burden of production to show unobviousness does not shift to a patent owner...more
In a rare case of disagreeing with the Patent Trial and Appeal Board (PTAB), the Court of Appeals for the Federal Circuit (CAFC) vacated and remanded a PTAB decision invalidating claims 10-25 of PPC Broadband, Inc.’s U.S....more