Research In Motion Ltd. (RIM), maker of the BlackBerry e-mail device, was sued by a Maryland company accusing it of infringing a patent for a way to access multiple e-mail accounts on the same unit.
TeleCommunication Systems Inc. (TSYS) of Annapolis filed the complaint in federal court in Virginia ``after business discussions with RIM failed to resolve the dispute,'' the company said in a statement.
TeleCommunication Systems said it is seeking cash compensation and an order that would prevent further use of its patented technology.
``There can be no assurances that this lawsuit will have a successful outcome, and the company could become subject to counterclaims by RIM,'' TeleCommunication Systems said in the statement.
An outside spokeswoman for Waterloo, Ontario-based Research In Motion (RIMM) had no immediate comment.
Research In Motion was sued for patent infringement before in Virginia. The company paid $612.5 million to settle that dispute.
TeleCommunication Systems rose 43 cents, or 14 percent, to $3.45 in Nasdaq Stock Market trading. Research In Motion rose $4.86, or 4.8 percent, to $106.99 after Oaktree Asset Management's chief investment officer Robert Pavlik said the company will benefit from demand for new products targeted at consumers.
To review the disputed patent through the U.S. Patent and Trademark Office's Web site, search for patent number 6,871,215 at http://www.uspto.gov/patft/index.html.