US Patent 7881441 Device independent text captioned telephone service
Patent 7881441 was granted and assigned to Ultratec, Inc. on February, 2011 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
March 28, 2006
0
Date of Patent
February 1, 2011
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Patent Application Number
11391141
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Patent Citations Received
Patent Inventor Names
Kevin R. Colwell
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Kurt M. Gritner
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Robert M. Engelke
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Troy D. Vitek
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Patent Jurisdiction
Patent Number
Patent Primary Examiner
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