Telecom Firm Sues BlackBerry Maker for Patent Violation

Seven months after a jury awarded it more than $12 million in a patent infringement lawsuit, TeleCommunication Systems Inc. has filed a similar suit -- this time against the makers of the addictive BlackBerry. The suit, which TeleCommunication said it filed in U.S. District Court for the Eastern District of Virginia, alleges that BlackBerry maker Research In Motion Ltd. is infringing upon a patent that governs the way wireless users access e-mail applications.