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Alwin Harms
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Wedemark, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Microphone having a microphone capsule, dynamic sound transducer fo...
Patent number
9,661,419
Issue date
May 23, 2017
Sennheiser electronics GmbH & Co. KG
Alwin Harms
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dynamic electro-acoustic transducer and earphone
Patent number
8,180,097
Issue date
May 15, 2012
Sennheiser electronic GmbH & Co. KG
Alwin Harms
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
Microphone having a microphone capsule, dynamic sound transducer fo...
Publication number
20150086058
Publication date
Mar 26, 2015
SENNHEISER ELECTRONIC GMBH & CO. KG
Alwin Harms
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DYNAMIC ELECTRO-ACOUSTIC TRANSDUCER AND EARPHONE
Publication number
20090290749
Publication date
Nov 26, 2009
SENNHEISER ELECTRONIC GMBH & CO. KG
Alwin Harms
H04 - ELECTRIC COMMUNICATION TECHNIQUE