A federal court denied an AT&T motion to invalidate a patent ring...
A federal court denied an AT&T motion to invalidate a patent ring-back tone developer Ring Plus said AT&T infringed, Ring Plus said Friday. The court denied the motion Feb. 13, saying AT&T didn’t provide clear and convincing evidence the…
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patent wasn’t properly authenticated, the company said in a news release. The court also denied a Ring Plus cross-motion for summary judgement. Ring Plus failed to prove that no reasonable jury could find that Ring Plus’s patent included all elements of the allegedly infringing AT&T patent. Ring Plus filed the original complaint against Cingular in U.S. District Court in Marshall, Texas, in 2006. “We continue to believe the patent is invalid, and that will be an issue at trial,” an AT&T spokesman said. A Ring Plus motion to disqualify an AT&T lawyer is pending (CD Jan 7 p10). That motion “lacks merit,” the AT&T spokesman said.