米国 - Patent Detectives

Centripetal Networks Patent Claim Held Unpatentable——Federal Circuit Affirms PTAB Anticipation Finding

Centripetal Networks Patent Claim Held Unpatentable——Federal Circuit Affirms PTAB Anticipation FindingOn April 2, 2026, ...

2026.04.03

パテント探偵

English知財ニュース

Federal Circuit Invalidates Patents Over Missing Coinventor——Fortress Iron Decision Reinforces Strict Inventor Requirements

Federal Circuit Invalidates Patents Over Missing Coinventor——Fortress Iron Decision Reinforces Strict Inventor Requireme...

2026.04.03

パテント探偵

English知財ニュース

Steinway’s Patents Expired Long Ago. So Why Can’t Anyone Replicate Their Dominance?

Steinway & Sons holds no active patents that cover the core technologies of its concert grand pianos. The overstrung pla...

2026.04.03

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Englishコラム

Can a Color Be a Trademark? Le Creuset’s Orange and the Legal Requirements for Color Mark Registration

In 1995, the United States Supreme Court confirmed that a single color can function as a trademark. The decision in Qual...

2026.04.03

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Englishコラム

Why Takashi Murakami Treats IP as an Art Form: Trademark, Copyright, and Licensing as Creative Strategy

Takashi Murakami is simultaneously one of the most commercially successful contemporary artists and one of the most stra...

2026.04.03

パテント探偵

English企業分析

The Birkin Isn’t Protected by a Patent — It’s Protected by Trade Dress: Hermès’s IP Strategy

The Hermès Birkin bag has no active patent protection. Its iconic silhouette cannot be exclusively claimed through desig...

2026.04.03

パテント探偵

English企業分析

How IP Law Will Evolve in the AGI Era: AI Inventions, AI Authorship, and the Regulatory Crossroads

As artificial general intelligence (AGI) comes into view, intellectual property law confronts foundational questions it ...

2026.04.03

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Englishコラム

When a Car Shape Becomes a Trademark: Ferrari, Porsche, and Jeep’s Design IP Strategies

When a car's shape becomes recognizable without its logo, that form may deserve legal protection. Ferrari's distinctive ...

2026.04.03

パテント探偵

English企業分析

How Meta’s Llama Strategy Rewrote the Rules: Open Source AI as an IP Strategy

Meta's decision to release the Llama series in "open" form has introduced structural changes to the competitive dynamics...

2026.04.03

パテント探偵

English企業分析

Gibson’s 15-Year Quest to Trademark a Guitar Body Shape — The Limits of 3D Trade Dress Protection

For over 15 years, Gibson Brands has pursued trademark and trade dress protection for the iconic body shapes of its Les ...

2026.04.03

パテント探偵

English企業分析