7 known cases. View patent page →
Headwater Research LLC sued AT&T Inc. et al. in the Eastern District of Texas, asserting U.S. Patents 8,589,541 and 9,215,613. The narrative identifies this as a related Headwater campaign case; U.S. 8,745,191 was not listed among the asserted patents.
Headwater Research LLC sued Apple Inc. in the Western District of Texas regarding device provisioning, service policy, and billing patents. U.S. 8,745,191 was not listed among the asserted patents.
Headwater Research LLC filed this action against Charter Communications Inc. et al. in the Eastern District of Texas, one of multiple related suits asserting various Headwater patents. U.S. 8,745,191 was not listed among the asserted patents.
Headwater Research LLC filed this action against Comcast Cable Communications, LLC d/b/a Xfinity et al. in the Eastern District of Texas, one of multiple related suits asserting various Headwater patents. U.S. 8,745,191 was not listed among the asserted patents.
Headwater Research LLC sued AT&T Services, Inc. et al. in the Eastern District of Texas on July 7, 2025. The narrative does not list asserted patents for this case; U.S. 8,745,191 was not listed among the asserted patents.
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.
Headwater Research LLC sued Verizon/Cellco Partnership in the Eastern District of Texas, Marshall Division, concerning Raleigh-related patents. The court issued a 2026 ruling finding Verizon entitled to equitable relief under implied waiver based on Headwater's delay from its 2017 infringement investigation to its July 2023 suit, while rejecting Verizon's equitable-estoppel theory. The narrative does not list specific asserted patents; U.S. 8,745,191 was not listed among the asserted patents.