3 known cases. View patent page →
Headwater Research LLC filed a patent infringement suit against AT&T Services, Inc., AT&T Enterprises, LLC, and AT&T Mobility LLC in the Eastern District of Texas on July 11, 2025. The case status implies it was recently filed.
Headwater Research LLC sued Cellco Partnership, d/b/a Verizon Wireless, and Verizon Corporate Services Group Inc. for patent infringement in the Eastern District of Texas on July 11, 2025. The case was dismissed without prejudice on September 26, 2025.
Apple Inc. filed a declaratory judgment action against Headwater Research LLC in the Northern District of California, asserting U.S. Patents 9,232,403; 9,491,564; and 8,639,935. The action was terminated November 3, 2025 via stipulated dismissal. U.S. 8,745,191 was not listed among the asserted patents.