Defendant
1 case as defendant.
Deutsche Telekom AG is a German telecommunications company headquartered in Bonn, Germany. Formed in 1995 through the privatization of the state-owned Deutsche Bundespost, the company is publicly traded under the ticker DTE on the Frankfurt Stock Exchange. As one of the world's leading integrated telecommunications companies, Deutsche Telekom generated revenue of approximately €119.1 billion in 2025 and employs around 200,000 people globally. The company is the majority shareholder of T-Mobile US, Inc., a major wireless carrier in the United States.
Deutsche Telekom operates as a global provider of fixed-network broadband, mobile communications, internet services, and IPTV for consumers. For business and corporate customers, it offers information and communication technology (ICT) solutions under its T-Systems brand. A significant portion of its revenue is generated outside of Germany, with the United States being a key market. Its subsidiary, T-Mobile US, became the nation's second-largest wireless carrier following its 2020 acquisition of Sprint, and it provides wireless voice, messaging, and data services to postpaid and prepaid customers.
The company’s patent litigation profile in the U.S. is that of an operating company defending its technology. The provided data shows Deutsche Telekom as a defendant in one tracked case and as a plaintiff in none. This defensive posture is common for large technology corporations that are targets for patent assertion entities. The single case listed was filed in the U.S. District Court for the Eastern District of Texas, a jurisdiction frequently favored by patent plaintiffs.
The tracked case, Headwater Research LLC v. Deutsche Telekom (Sprint, T-Mobile), involves a non-practicing entity (NPE) as the plaintiff. Headwater Research LLC is a known patent assertion entity that has filed infringement suits against numerous major technology and telecommunications companies, including Apple, Samsung, and Verizon, often involving patents related to mobile and wireless technologies. The inclusion of "Sprint, T-Mobile" in the case name directly connects the litigation to Deutsche Telekom's major U.S. operating assets.
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.