News & Analysis as of

Patents Patent Infringement Doctrine of Prosecution Disclaimer

McDermott Will & Emery

Prosecution Disclaimer Alive and Well, Especially in Closed Claim

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit affirmed a district court’s noninfringement determination, finding that the presence of a disclaimed compound in the accused product precluded infringement. Azurity Pharm., Inc....more

Morrison & Foerster LLP

Sonos v. Google Breathes New Life into Prosecution Laches Doctrine

A recent district court decision in Sonos v. Google has set forth a novel application of the prosecution laches doctrine to a patent with a post-1995 priority date. Sonos Inc. v. Google LLC, 20-06754 WHA, 2023 WL 6542320...more

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

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2021 Decisions

[co-author: Jamie Dohopolski] Last year, the continued global COVID-19 pandemic forced American courts to largely continue the procedures set in place in 2020. The U.S. Court of Appeals for the Federal Circuit was no...more

Morrison & Foerster LLP - Federal Circuitry

Last Week in the Federal Circuit (June 1–4): Prosecution Disclaimer – What’s Good for the Goose …

Although last week saw just four Federal Circuit opinions, they were all precedential ones and covered a range of interesting issues. Below we provide our usual weekly statistics and our case of the week—our highly subjective...more

McDonnell Boehnen Hulbert & Berghoff LLP

Baxalta Inc. v. Genentech, Inc. (Fed. Cir. 2020)

The Federal Circuit recently vacated a District Court decision by Federal Circuit Judge Dyk, sitting by designation, based on erroneous claim construction in Baxalta Inc. v. Genentech, Inc...more

Jones Day

District Courts Find PTAB Statements Constitute Disclaimer

Jones Day on

In Linksmart Wireless Tech., LLC v. Caesars Entm’t Corp., Case No. 2:18-cv-00862-MMD-NJK (D. Nev. May 8, 2020) the Court addressed disputed claim terms in U.S. Reissued Patent No. RE46,459 (the “’459 Patent”), Linksmart had...more

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

PTAB Strategies and Insights - September 2019

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

Schwabe, Williamson & Wyatt PC

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

In Sanofi v. Watson Labs., the Circuit affirms a determination of induced infringement of one patent and direct infringement of another, thus assuring Sanofi another 12 years of exclusivity as to its Multaq® atrial...more

McDermott Will & Emery

Patent Owner Statements in IPR May Result in Prosecution Disclaimer

Addressing for the first time the issue of whether statements made during America Invents Act post-grant proceedings can trigger a prosecution disclaimer, the US Court of Appeals for the Federal Circuit upheld the district...more

Mintz - Intellectual Property Viewpoints

Federal Circuit Expands Scope of Prosecution Disclaimer to IPR Proceedings

In its opinion in Aylus Networks, Inc. v. Apple Inc., the Federal Circuit expanded the scope of prosecution disclaimer to statements made by a patent owner during Inter Partes Review (IPR) proceedings. The Court explained...more

Schwabe, Williamson & Wyatt PC

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

Our report includes discussions of six of the precedential cases decided in the past week and will include the other three cases in next week’s report. In Aylus v. Apple, the panel finds prosecution disclaimer in a...more

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