Federal Circuit - Patent Detectives

DOJ Files SEP Antitrust Brief in Samsung-Netlist Case, Reiterates That Standard Adoption Does Not Confer Market Power

The U.S. Department of Justice (DOJ) filed a Statement of Interest (SOI) on April 7, 2026 in the ongoing patent infringe...

2026.04.12

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Federal Circuit Affirms PTAB’s IPR Invalidation of Universal Electronics Remote Control Patent in Roku Dispute

On April 10, 2026, the U.S. Court of Appeals for the Federal Circuit affirmed a Patent Trial and Appeal Board (PTAB) dec...

2026.04.11

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Federal Circuit Upholds PTAB’s Section 101 Rejection of Information Exchange Patent Application: In re McFadden (2026)

On April 8, 2026, the U.S. Court of Appeals for the Federal Circuit affirmed a Patent Trial and Appeal Board (PTAB) deci...

2026.04.11

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Can a Later-Filed Patent Ground an ODP Rejection? USPTO ARP Reviews PTAB’s Allergan Reading in Ex Parte Baurin

On April 9, 2026, the U.S. Patent and Trademark Office (USPTO) published amicus briefs filed in Ex Parte Baurin, a proce...

2026.04.10

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CAFC Holds ‘X Dot’ Vape Mark Not Confusingly Similar to Cigar’s ‘X’ Trademark in Precedential Ruling

On April 9, 2026, the U.S. Court of Appeals for the Federal Circuit (CAFC) issued a precedential decision affirming the ...

2026.04.10

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Federal Circuit: Unreachable Coinventor = Invalid Patent—Strict Construction of 35 U.S.C. Section 256(b) in Fortress Iron v. Digger Specialties

The U.S. Court of Appeals for the Federal Circuit solidified patent law on April 2, 2026: when a coinventor cannot be lo...

2026.04.10

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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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Federal Circuit Confirms Prosecution Statements Permanently Limit Patent Claim Scope—Puradigm Decision

The U.S. Court of Appeals for the Federal Circuit held on April 1, 2026, in Puradigm, LLC v. DBG Group Investments LLC, ...

2026.04.07

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Patent Explained

Federal Circuit Rules Social-Network Content Personalization Patent Ineligible Under § 101: TikTok Prevails

The U.S. Court of Appeals for the Federal Circuit on March 31, 2026 affirmed a district court judgment finding claim 1 o...

2026.04.05

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Federal Circuit Splits on Tesla EV Charging Patent: Claim 1 Obvious, Time-Calculation Claims Survive

The U.S. Court of Appeals for the Federal Circuit on March 31, 2026 issued a split decision in Tesla, Inc. v. Charge Fus...

2026.04.05

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