Tag: inequitable conduct
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T-Mobile US v. KAIFI: Patent Settlement Dispute Falls Outside Federal Circuit Jurisdiction
The Federal Circuit’s precedential decision in T-Mobile US, Inc. v. KAIFI LLC, Case No. 2025-1006 (Fed. Cir. Aug. 28, 2026), draws an important boundary between patent litigation and commercial disputes involving patents. A state-law contract claim does not fall within the Federal Circuit’s exclusive appellate jurisdiction merely because one party’s preferred interpretation would require deciding questions of prosecution…
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Global Tubing v. Tenaris: Federal Circuit Vacates Summary Judgment on Inequitable Conduct and Walker Process Fraud
The Federal Circuit’s decision in Global Tubing LLC v. Tenaris Coiled Tubes LLC, No. 2023-1882 (Fed. Cir. Feb. 26, 2026) delivers a sharp reminder that even apparently damning internal language will not short-circuit the demanding standards governing inequitable conduct and Walker Process fraud. In its opinion, the court vacated summary judgment of inequitable conduct and…