Wire · regulatory
District Judge Dissents from CAFC Ruling for Amazon, Citing Claim Construction 'Rabbit Hole'
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Fusion42 · 14 September 2026 · Fusion42 review
The U.S. Court of Appeals for the Federal Circuit affirmed a district court ruling of noninfringement in a wide area network patent case involving Amazon, rejecting AlterWAN's claim construction challenges. A dissenting judge criticized the majority for relying on inferred non-claim terms and vague prosecution history in their claim construction.
This Wire brief sits within Fusion42's coverage of Deep Tech: Telecom & Connectivity.
◆ ◆ The Wire takeaway
U.S. patent litigation around telecom networking patents just tightened on claim term construction rigour, making ambiguous patent claims a liability. If you build network tech, review your patent language for clear claim boundaries today.
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1 source · 14 Sep 2026
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