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PTAB Nixes 8 Patents At Issue In $44M Captioned Phone Case

By Ryan Davis (March 4, 2015, 8:22 PM EST) -- The Patent Trial and Appeal Board on Tuesday invalidated eight Ultratec Inc. patents on closed-captioning technology for telephones used by people with hearing disabilities, four months after a jury found that rival CaptionCall LLC infringed the patents and awarded Ultratec $44 million....

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