InterDigital Inc has filed a complaint at the U.S. International Trade Commission against Nokia, Huawei Technologies Co Ltd and ZTE Corp accusing the cellphone makers of infringing seven InterDigital technology patents.

The wireless technology patent holder, which is considering selling itself, said on Tuesday that it has asked the ITC to bar these companies from U.S. sales of any infringing products including phones or tablet computers.

It has also filed a complaint in the United States District Court for the District of Delaware alleging infringement. The ITC must decide whether to start a formal investigation within 30 days of the complaint filing, according to the company.

(Reporting by Sinead Carew; editing by Gerald E. McCormick)

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