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Estoppel certification in reexamination prevents relitigation of resolved issues....more
This Federal Circuit Opinion analyzes statutory estoppel under 35 U.S.C. § 315(e)(1) and examines offensive and defensive arguments related to § 103 obviousness. Gesture Technology Partners, LLC is the owner of U.S....more
Ex parte reexamination (EPRx) comes with risks and rewards for both patent challengers and patent owners. Patent challengers enjoy a lower threshold for institution and avoid the estoppel risk of other post-grant proceedings...more
On October 25, 2024, the United States District Court for the Eastern District of Pennsylvania ordered Comcast Corporation (“Comcast”) to identify the date on which it learned of each patent, patent application, and printed...more
In Natera, Inc v. Neogenomics Laboratories, Inc., Appeal No. 24-1324 the Federal Circuit held that preliminary injunction may be valid if a substantial question of invalidity was not raised, even if the asserted patent is...more
We previously reported on the litigation brought by ModernaTX, Inc. and Moderna US, Inc. (collectively, “Moderna”) against BioNTech SE, BioNTech Manufacturing GmbH, BioNTech US Inc. (collectively, “BioNTech”), and Pfizer Inc....more
As any PTAB practitioner knows, the possibility of being estopped from asserting prior art in district court is a significant risk that must be considered when filing an IPR. Section 315(e)(2) prevents a petitioner, following...more
In GeigTech East Bay v. Lutron Electronics, patent owner GeigTech argued that Lutron should be estopped under 35 U.S.C. § 325(e)(2) from asserting two prior art grounds that it said Lutron could have reasonably raised in its...more
2023 was a busy year at the Patent Trial and Appeal Board, as post-grant practice continued to evolve at a rapid pace. At the United States Patent and Trademark Office, there were big developments in Director Review and...more
Federal Circuit Judge William Bryson, sitting by designation in the District of Delaware, ruled on summary judgment that inter partes review (IPR) estoppel does not apply to device art, even if the device is cumulative of...more
Director Jason A. Fitzsimmons and Counsel Richard A. Crudo will present the “Developments in IPR Estoppel” webinar on Tuesday, December 5, 2023, at 1:00 PM ET. The possibility of being estopped from asserting prior art in...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
I. Introduction - The Leahy-Smith America Invents Act (“AIA”) was years in the making. From the first patent reform bill introduced by Representative Lamar Smith in June 20052 until the final House and Senate debates in...more
In an appeal from the United States District Court for the Western District of Washington, the Federal Circuit confirmed that on the issue of inter partes review (IPR) estoppel, the burden of proof rests on the patentee to...more
Derivation Showing Overcome by Evidence of Respondent’s Prior Conception in Rare Derivation Proceeding - The Board issued a decision in a rare derivation proceeding filed by Global Health Solutions LLC (“Petitioner”)...more
A recent Federal Circuit opinion clarified that patent owners carry the burden of proving that inter partes review (IPR) estoppel applies to invalidity grounds not included in their IPR petitions. The Federal Circuit also...more
On April 3, in Ironburg Inventions Ltd. v. Valve Corp., the Federal Circuit articulated a standard for applying inter partes review (IPR) estoppel on grounds a petitioner “reasonably could have raised” under 35 U.S.C. §...more
Yesterday, in Ironburg Inventions Ltd. v. Valve Corp., Case No. 21-2296 (Fed. Cir. Apr. 3, 2023), the Federal Circuit held that for estoppel to apply under 35 U.S.C. § 315(e)(2), a patent holder must prove, by a preponderance...more
IRONBURG INVENTIONS LTD. v. VALVE CORP. Before Lourie, Clevenger, and Stark. Appeal from the United States District Court for the Western District of Washington. Summary: The patentee has the burden of proving that...more
Speakers will offer updates, case summaries, and analysis of the significant 2022 PTAB guidance, actions, and rulings. Topics include: the Director’s 2022 Fintiv guidance, PTAB discretionary denial, the use of applicant...more
Intuitive filed three IPR petitions, all on the same day, challenging Ethicon’s endoscopic surgical instrument patent. The petitions challenged overlapping claims based on different combinations of prior art references. The...more
Caltech sued Broadcom and Apple for infringement, asserting three of its data transmission patents against Broadcom’s WiFi chips and certain Apple products that incorporate those chips. Apple then filed IPR petitions...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
In Victaulic Company v. ASC Engineered Sols., LLC, the District of Delaware ruled on summary judgment that ASC is estopped from asserting two obviousness grounds against a patent claim because it raised the same grounds...more
We are committed to providing insightful commentary on IP developments from around the world to our Japanese clients. In light of that effort, we are continuing our free monthly webinar series, McDermott IP Focus. During...more