Federal Circuit - Patent Detectives

Federal Circuit Reverses Trade Secret and Patent Invalidity Rulings in Penile Implant Dispute: Prior Art Patents Destroy Secrecy, Inventor Contribution Standard Clarified

The U.S. Court of Appeals for the Federal Circuit issued a precedential ruling on April 18, 2026, substantially reversin...

2026.04.20

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Federal Circuit Reverses Teva Headache Patent Invalidity, Distinguishing Amgen on §112 Written Description and Enablement

The U.S. Court of Appeals for the Federal Circuit issued a precedential opinion on April 16, 2026, reversing a judgment ...

2026.04.19

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Federal Circuit Reinstates $177M Teva Verdict Against Eli Lilly in Migraine Drug Patent Dispute

The U.S. Court of Appeals for the Federal Circuit on April 16, 2026 reinstated a $177 million jury verdict in favor of T...

2026.04.18

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Federal Circuit Reverses Noninfringement Rulings in VLSI v. Intel, Reviving Patent Claims on Extraterritoriality and Equivalents

The U.S. Court of Appeals for the Federal Circuit (CAFC) issued a precedential decision on April 14, 2026, reversing the...

2026.04.17

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PTAB IPR Filings Hit Historic Low in Q1 2026: 64% Drop and Discretionary Denial Surge Signal Structural Shift

PTAB inter partes review petitions collapsed 64% year-over-year in Q1 2026 to just 131 total filings. Institution rates for NPEs fell to 24.6%, discretionary denials surged 622% YoY, and ex parte reexamination hit its second-highest level in history. Analysis of the structural shift in U.S. post-grant proceedings.

2026.04.16

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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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CAFC Reverses Noninfringement Ruling Against Intel in Precedential VLSI Decision

The U.S. Court of Appeals for the Federal Circuit (CAFC) issued a precedential decision on April 14, 2026, in VLSI Techn...

2026.04.15

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Federal Circuit Affirms Apple Watch Import Ban: The Full Story of Apple vs. Masimo

Federal Circuit Affirms ITC's Import Ban: What the March 2026 Decision MeansOn March 19, 2026, the U.S. Court of Appeals...

2026.04.15

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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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Secret Prior Art in 25% of Office Actions: Patently-O’s Empirical Study and the Lynk Labs Cert Denial

On April 9, 2026, Professor Dennis Crouch of the University of Missouri School of Law published an empirical study on Pa...

2026.04.13

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