On May 29, 2012, Mobile Telecommunications Technologies, LLC sued RIM in the Northern District of Texas for alleged acts of patent infringement. Mobile Telecommunications claims (complaint available here) that RIM infringes United States Patent Nos. 5,809,428; 5,754,946; 5,559,862; 5,894,506; and 5,581,804, which claim technology relating to sending messages.
The case has been assigned to Judge Lynn.
Mobile Telecommunications is represented by Daniel Scardino of Reed & Scardino LLP.