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Olaf Leske
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Langenhagen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Headset and headphone
Patent number
9,277,039
Issue date
Mar 1, 2016
Sennheiser electronic GmbH & Co. KG
Axel Schmidt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Earphone, headset and ear pad
Patent number
8,638,969
Issue date
Jan 28, 2014
Sennheiser electronic GmbH & Co. KG
Jan Peter Kuhtz
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Headset and headphone
Patent number
8,559,665
Issue date
Oct 15, 2013
Sennheiser electronic GmbH & Co. KG
Axel Schmidt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Earphone and headset
Patent number
8,369,557
Issue date
Feb 5, 2013
Sennheiser electronic GmbH & Co. KG
Jan Peter Kuhtz
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Earphone and headset
Patent number
8,249,267
Issue date
Aug 21, 2012
Sennheiser electronic GmbH & Co. KG
Olaf Leske
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Earphone and headset
Patent number
8,204,267
Issue date
Jun 19, 2012
Sennheiser electronic GmbH & Co. KG
Olaf Leske
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
HEADSET AND HEADPHONE
Publication number
20130343592
Publication date
Dec 26, 2013
SENNHEISER ELECTRONIC GMBH & CO. KG
Axel Schmidt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
HEADSET AND HEADPHONE
Publication number
20110194721
Publication date
Aug 11, 2011
Sennheiser electronic GmbH & Co., KG
Axel Schmidt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
EARPHONE, HEADSET AND EAR PAD
Publication number
20100158301
Publication date
Jun 24, 2010
SENNHEISER ELECTRONIC GMBH & CO. KG
Jan Peter Kuhtz
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
EARPHONE AND HEADSET
Publication number
20090323978
Publication date
Dec 31, 2009
SENNHEISER ELECTRONIC GMBH & CO. KG
Olaf Leske
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
EARPHONE AND HEADSET
Publication number
20090323979
Publication date
Dec 31, 2009
SENNHEISER ELECTRONIC GMBH & CO. KG
Olaf Leske
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
EARPHONE AND HEADSET
Publication number
20090262952
Publication date
Oct 22, 2009
SENNHEISER ELECTRONIC GMBH & CO. KG
Jan Peter Kuhtz
H04 - ELECTRIC COMMUNICATION TECHNIQUE