Plaintiff
43 cases as plaintiff.
Headwater Research LLC is a private technology development and patent assertion entity headquartered in Tyler, Texas. While legal filings state it was formed in 2011, other sources place its founding in 2008. The firm was founded by Dr. Greg Raleigh, an inventor in the wireless communication field who is the source of the patents the company asserts. Headwater's website states that it invents and develops "significant technological breakthroughs," but it is primarily known as a non-practicing entity (NPE) that monetizes its intellectual property through litigation and licensing campaigns.
The company controls a large patent portfolio, with some families containing nearly 280 patents, generally related to mobile device technology. The patents cover wireless communications, mobile device operating systems, data management, network optimization, and power consumption. Based on available court records, Headwater acts exclusively as a plaintiff in patent litigation, suing operating companies for alleged infringement. This is consistent with its 100% plaintiff record in the tracked cases (four plaintiff cases, zero as a defendant). The company frequently files its lawsuits in the U.S. District Courts for the Eastern and Western Districts of Texas, venues known for patent litigation.
Headwater has engaged in numerous high-profile patent infringement lawsuits against major telecommunications and technology companies. The provided case data lists suits against Verizon, T-Mobile, AT&T, and Apple. Beyond these cases, Headwater has also litigated extensively against other major tech companies, including Samsung and Google. The company has secured significant jury verdicts, including a $278.8 million award against Samsung in April 2025 and a $175 million award against Verizon in July 2025. It has reportedly reached settlements with Apple, AT&T, and T-Mobile.
This district court case is part of a broader legal offensive by Headwater Research against several technology companies. The case is currently ongoing.
This patent infringement case, filed on September 18, 2025, in the Texas Eastern District Court, is currently open and involves US Patent 9615192 B2.
This case, filed on September 18, 2025, in the Eastern District of Texas, is consolidated for all pretrial issues with lead case 2:25-cv-00961. Individual cases remain active for trial.
This case, filed on September 18, 2025, in the Eastern District of Texas, is consolidated for all pretrial issues with lead case 2:25-cv-00961. Individual cases remain active for trial.
This case, filed on September 18, 2025, in the Eastern District of Texas, is consolidated for all pretrial issues with lead case 2:25-cv-00961. Individual cases remain active for trial.
This case, filed on September 18, 2025, in the Eastern District of Texas, serves as the lead case for pretrial consolidation of multiple related patent infringement actions.
The complaint alleges infringement by Comcast's cellular networks, servers, services, and mobile devices that implement wireless offloading functionalities on the Xfinity Mobile network. The patent claims a wireless end-user device that actively participates in the offloading decision.
This lawsuit is another component of Headwater's extensive patent assertion campaign and is currently ongoing.
Headwater sued Charter Communications in the August 2025 wave asserting a seven-patent set including the '464 patent, as identified in PTAB petition disclosures. The case was pending.
Headwater sued Comcast Cable Communications d/b/a Xfinity asserting the same seven-patent set including the '464 patent as in related cases, per PTAB petition disclosures. The case was pending.
Headwater Research LLC's patent infringement action against Cellco Partnership (dba Verizon Wireless) was voluntarily dismissed without prejudice on September 26, 2025. This case was filed on July 11, 2025, in the Eastern District of Texas.
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.
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.
This active case, filed in the Texas Western District Court, has a scheduling order issued on March 11, 2026. A notice of partial settlement as to claims and liability associated with Apple Inc. products and services was filed on November 10, 2025.
This case was initially filed in the Texas Western District Court. It was settled and dismissed on February 23, 2026, following the cancellation of a Markman hearing, indicating a confidential settlement or licensing resolution.
Headwater sued T-Mobile and Sprint asserting the '464 patent, including independent claim 11, and also asserting U.S. Patent No. 11,985,155. The case remained open/pending, with IPR petitions filed as part of the broader carrier campaign.
Headwater sued multiple wireless carriers asserting a five-patent set including the '464 patent; the case was dismissed without prejudice by joint stipulation under Rule 41(a)(1)(A)(ii), each party bearing its own costs.
The case was dismissed with prejudice on September 30, 2025, following a joint motion by the parties, which suggests a settlement was reached.
Headwater sued Verizon entities for infringement. The jury found willful infringement of Claim 83 of the '541 patent and Claim 1 of U.S. Patent No. 9,215,613, awarding $175,000,000. The court later found the asserted patents unenforceable under implied waiver and entered final judgment for Verizon; cross-appeals are pending at the Federal Circuit.
A jury found Verizon infringed and awarded $175 million in damages, but on April 24, 2026, a federal judge overturned the verdict, ruling that Headwater had improperly delayed filing the lawsuit.
The case was dismissed with prejudice after 816 days of litigation, indicating a confidential settlement was reached.
This lawsuit was filed in September 2023 and was settled before a jury trial was set to begin. The case was dismissed without prejudice.
This lawsuit alleged that Apple's products using the Apple Push Notification service infringed on Headwater's patents, including U.S. Patent No. 8,667,571. The case was settled and dismissed with prejudice 68 days after it was filed.
This case was one of three patents asserted against AT&T related to mobile data management. The case was dismissed without prejudice on September 29, 2025, following a joint stipulation of dismissal, which often indicates a settlement.
This case was part of a series of lawsuits filed by Headwater Research against major wireless carriers in April 2025. It is part of the broader litigation campaign involving the '102 patent and was likely also settled.
This case was also part of the April 2025 trio of lawsuits filed by Headwater. A separate case against Verizon resulted in a $175 million jury verdict for Headwater, but the narrative does not specify if the '102 patent was at issue in that particular trial.
Headwater Research LLC is actively asserting US patent 10237757 in this active litigation in the Texas Eastern District Court.
This case is consolidated for all pretrial issues with lead case 2:25-cv-00961. The individual cases, including this one, remain active for trial.
A patent infringement case involving US9647918 filed in the Texas Western District Court, with Headwater Research LLC as the likely plaintiff.
A patent infringement case filed by Headwater Research LLC against Samsung Electronics Co., Ltd., et al., in the Texas Eastern District Court, which is actively proceeding with invalidity disclosures.
Headwater's February 2025 suit against AT&T entities asserted the same five-patent set including the '464 patent; it was dismissed without prejudice by joint stipulation under Rule 41(a)(1)(A)(ii).
Headwater sued Google asserting a seven-patent set including the '464 patent, targeting Google mobile devices, eSIM-enabled devices, and Google Fi MVNO services. The case was pending with active motion practice.
Google Patents' litigation records list this W.D. Tex. action as involving the '464 patent, but the defendant identity and full patent set were not confirmed from available data.
Headwater sued DISH entities asserting a seven-patent set including the '464 patent; EchoStar's Form 10-Q stated it intended to vigorously defend and disclosed potential damages exposure.
Headwater sued Samsung for infringement of '055 and related patents. The parties filed a joint motion to dismiss; in September 2025 the court dismissed Headwater's infringement claims with prejudice and Samsung's counterclaims/defenses without prejudice, each side bearing its own fees and costs.
This W.D. Tex. action is identified on the patent's Google Patents litigation feed as involving '055. Defendant names could not be confirmed from the sources gathered.
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 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.
Headwater asserted the '541 patent and the '613 patent against T-Mobile entities; T-Mobile counterclaimed for declaratory judgment of non-infringement and invalidity of both. Claim-construction order entered Jan. 20, 2025. The member case was consolidated into lead case 2:23-cv-00379-JRG-RSP; no trial outcome for the '541 patent was identified.