Headwater Research Peppers US Wireless Carriers with Yet Another Round of East Texas Complaints

There are currently over 280 issued US patents in the family that Headwater Research LLC began asserting in litigation back in October 2022, with the prosecution of myriad pending applications continuing before the USPTO. This past week, Headwater Research filed another round of Eastern District of Texas complaints against the big three US wireless carriers—AT&T (AT&T Mobility) (2:25-cv-00685), Deutsche Telekom (Sprint, T-Mobile) (2:25-cv-00686), and Verizon (Verizon Wireless) (2:25-cv-00687)—asserting an additional five patents from the same large family against each. Other defendants in the US leg of this campaign include Samsung, Lenovo (Motorola Mobility), Alphabet (Google), and Amazon, sued in that rough order (with the European leg including litigation against Apple, Lenovo, and Samsung). Two Eastern District of Texas juries have returned verdicts in this campaign—one for and one against Headwater, both in cases filed against Samsung—with trials in the first cases filed against the US wireless carriers slated for the next available trial setting of District Judge Rodney Gilstrap.