US Patent 7522740 Multi-coil coupling system for hearing aid applications
Patent 7522740 was granted and assigned to Etymotic Research on April, 2009 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
February 1, 2006
Date of Patent
April 21, 2009
Patent Application Number
11345567
Patent Inventor Names
Willem Soede
0
Stephen D. Julstrom
0
Viorel Drambarean
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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