patent litigation - Patent Detectives

PTAB Petition Filings Collapse 64% in Q1 2026—Discretionary Denials Drive Historic Low

PTAB petition filings fell 64.2% year-over-year to a historic low of 131 petitions in the first quarter of 2026, accordi...

2026.04.16

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IP News

Federal Circuit Invalidates Patents for Co-Inventor Omission – Fortress Iron Decision Sends Warning to Collaborative R&D

The U.S. Court of Appeals for the Federal Circuit (CAFC) issued a precedential decision on April 2, 2026, invalidating t...

2026.04.14

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IP News

Federal Circuit Rules IPR Challengers Must Prove Standing Against Substitute Claims Specifically—ironSource v. Digital Turbine

On April 7, 2026, the U.S. Court of Appeals for the Federal Circuit issued a precedential ruling in ironSource Ltd. v. D...

2026.04.08

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IP News

Federal Circuit Affirms PTAB: Centripetal Networks Cybersecurity Patent Anticipated by Cisco User Guide

The U.S. Court of Appeals for the Federal Circuit (CAFC) on April 2, 2026 affirmed the Patent Trial and Appeal Board's (...

2026.04.05

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IP News

USPTO’s First Life Sciences PTAB Listening Session Surfaces Fundamental Divide Over Patent Validity and Drug Competition

The U.S. Patent and Trademark Office convened the first of three planned listening sessions on March 30, 2026, to examin...

2026.04.04

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IP News

Federal Circuit’s First-Impression Ruling: Unreachable Coinventor Dooms Fortress Iron Patents Under 35 U.S.C. § 256(b)

The U.S. Court of Appeals for the Federal Circuit issued a precedential opinion on April 2, 2026, affirming the invalidi...

2026.04.04

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IP News

Apple vs. Samsung: The Design Patent War That Changed What a Phone Is Worth

Apple vs. Samsung's 2011-2018 design patent war produced a $539M verdict, a Supreme Court ruling on damages, and permanently changed how the tech industry values aesthetics as IP. A deep investigation.

2026.03.30

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