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Apherma, LLC
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St. Paul, MN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Auto-fit hearing aid and fitting process therefor
Patent number
8,767,972
Issue date
Jul 1, 2014
Apherma, LLC
Zezhang Hou
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Limited use hearing aid
Patent number
8,189,830
Issue date
May 29, 2012
Apherma, LLC
Zezheng Hou
H04 - ELECTRIC COMMUNICATION TECHNIQUE