5 known cases. View patent page →
Proxense sued Apple, Inc. in the Western District of Texas, asserting multiple patents including US 9,049,188. On September 26, 2024, the parties jointly stated Proxense intended to dismiss with prejudice all allegations that Apple infringes US 9,049,188 and substitute US 9,679,289; the case otherwise remained pending with trial set for January 19, 2026 under the amended scheduling order.
Proxense sued Microsoft in W.D. Tex. asserting US 9,679,289 among six patents-in-suit. The case remained pending with narrowed/summary-judgment activity through 2025, and a parallel Microsoft IPR (IPR2024-00407) ended in a final written decision against Proxense.
Microsoft petitioned for inter partes review of US 8,646,042. The Board found the challenged claims unpatentable as obvious; oral hearing held May 13, 2025.
Google petitioned for inter partes review of US 8,646,042. The Board issued a final written decision.
Apple petitioned for inter partes review of US 8,646,042. The Board issued a final written decision, the proceeding terminated on August 4, 2025, and the matter is on appeal.