Trouble not over for Blackberry

Consumer Affairs:

Research In Motion, the company that makes the Blackberry hand-held communication device, is the defendant in yet another lawsuit claiming its popular product infringes on someone else's patent.

RIM paid millions of dollars to settle a similar claim two months ago.

In the latest case, California-based Visto filed a lawsuit against RIM, charging the company illegally used four of its patents. Visto said it would seek an injunction to force RIM to stop using its technology and to pay monetary damages.

RIM denied the claims in a brief statement "RIM believes it does not infringe Visto's patents and will file its legal response in due course," it said.

Visto has already successfully sued another company it said was using its mobile email technology without permission. It sued Seven, Inc., in Texas.