In a pair of Eastern District of Texas complaints, Headwater Research LLC has accused Deutsche Telekom (Sprint, T-Mobile) (2:23-cv-00377, 2:23-cv-00379) of infringing four mobile data management patents through the provision of “mobile electronic devices, including mobile phones and tablets . . . as well as cellular networks, servers, and services”. The plaintiff asserted the same four patents in a single complaint, filed late last month in the same district, against Verizon (Verizon Wireless). Headwater pleads that it worked under a nondisclosure agreement with Samsung and Sprint, beginning in 2010, to implement its technology “to solve Sprint’s data demand problems”.