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RIM, Motorola sue each other

Research in Motion and Motorola Inc. have sued each other in Texas over patent issues, media reports said.

Each alleges other infringed patents

Research in Motion and Motorola Inc. have sued each other in Texas over patent issues, media reports said Monday.

RIM's BlackBerry is a hugely popular portable communications device.

Waterloo, Ont.-based RIM has begun a court case claiming the American cellphone maker is infringing on several of its patents. RIM also said Motorola is charging it "exorbitant royalties" for the use of some Motorola technology, the Canadian Press reported.

Motorola also sued RIM, claiming its BlackBerry wireless e-mail device violates seven U.S. patents, Bloomberg News said.

Both cases were filed on Feb. 16.

Both companies are wireless innovators and have collaborated and competed with each other over the years.

RIM is seeking a court order declaring that Motorola is violating nine of its patents, and that Motorola is breaching its commitment to license intellectual property to RIM "on a fair, reasonable and non-discriminatory basis."

Motorola claimed that RIM used its patented inventions without permission. It is seeking cash and an order forcing RIM to stop.