An Omaha company is suing five cell phone makers for allegedly using its patent-protected computer technology without permission.
Prism Technologies alleges that the companies took advantage of
a system that controls which smart phones, tablets and broadband
mobile cards can access an internet service.
The lawsuits in U.S. District Court of Nebraska were filed
against AT&T, Verizon Wireless, T-Mobile USA, Sprint PCS and U.S.
The lawsuit says the company secured a patent for its inventions
in October 2007. The company is seeking royalty payments with
interest, as well as a judge's order for the companies to stop the
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