7609402

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 sued Brother in the Western District of Tennessee, asserting the '402 patent along with other Flexiworld patents. The case was resolved by consent judgment with prejudice on March 13, 2023, with terms not public.

Flexiworld sued the Hisense group in the Eastern District of Texas, asserting the '402 patent along with several additional patents. The case was pending as of mid-2022, and the final outcome was not confirmed in the sources retrieved.

Flexiworld sued Hisense and affiliated entities in the Northern District of Georgia, asserting the '402 patent. The case settled and was administratively closed on April 7, 2023, before claim construction, with dismissal with prejudice contemplated.

Lead case in the coordinated Lexmark actions. The court denied Lexmark's renewed partial motion to dismiss on March 20, 2023; the ultimate disposition was not confirmed in the retrieved sources.

Lexmark petitioned for inter partes review of the '402 patent. The PTAB denied institution on November 17, 2023, so no merits finding on validity was made.

Google Patents litigation feed lists this district court case as involving the '402 patent, but parties and status were not independently confirmed.