Clearwire Accused Of Flouting 'Dead Zone' Wireless Patent

Law360, New York (October 10, 2012, 3:17 PM EDT) -- A patent-holding company on Tuesday accused mobile service network operator Clearwire Corp. in Delaware federal court of stealing a patented method for tackling the problem of “dead zones” within a wireless coverage area.

Griffin Technology Holdings Inc. says Clearwire, which operates both a consumer brand and wholesale operations through deals with Sprint Nextel Corp. and other providers, has been infringing its patent for enhancing a cellular network by plugging low-coverage areas.

The patent — U.S. Patent Number 6,473,617, titled, “Enhanced Cellular Communication System” — describes a...
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