9836257

Flexiworld Technologies sued Sony in the Eastern District of Texas asserting infringement of wireless output/smart device patents; the Stanford NPE Litigation Database maps US10133527 to this case. The action was dismissed with prejudice by joint stipulation under Rule 41(a)(1)(A)(ii) in May 2025, with no merits ruling. Other litigation summaries list different asserted patent sets that do not include 10133527, creating a conflict as to whether 10133527 remained asserted.

Flexiworld accused Roku of infringing the '257 patent and related patents through Roku streaming devices, the Roku Mobile App, Roku TV OS, and Roku TV products. The parties settled via a Patent License Agreement and the case was dismissed with prejudice in 2022.

Flexiworld identified the '257 patent in this S.D. Tex. action. HP answered with a jury demand and counterclaim and moved to dismiss; Flexiworld filed an amended complaint. No final resolution was identified as of the search date.

This case is listed in the Stanford NPE Litigation Database as involving the '257 patent against Hisense and numerous affiliates. The final disposition could not be confirmed from available sources.

Unified Patents petitioned for inter partes review of claims 27 and 28 of the '257 patent. The PTAB granted institution, then determined Unified Patents failed to prove the challenged claims unpatentable and dismissed the patent owner's contingent motion to amend.

Roku filed an IPR petition against the '257 patent. The proceeding was terminated pre-institution pursuant to a joint motion based on the parties' Patent License Agreement, which also resolved the W.D. Tex. litigation.