Hugo Lenhard-Backhaus

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Patents Grantslast 30 patents

Information Patent Grant
Headphone
- Patent number 7,172,052
- Issue date Feb 6, 2007
- AKG Acoustics GmbH
- Hugo Lenhard-Backhaus
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Magnet system of a sound transducer
- Patent number 7,151,840
- Issue date Dec 19, 2006
- AKG Acoustics GmbH
- Hugo Lenhard-Backhaus
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Headphone
- Patent number 7,072,483
- Issue date Jul 4, 2006
- AKG Acoustics GmbH
- Hugo Lenhard-Backhaus
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of manufacturing a lacquer coated wire
- Patent number 6,789,311
- Issue date Sep 14, 2004
- AKG Acoustics GmbH
- Werner Fidi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Micro-microphone
- Patent number 6,351,543
- Issue date Feb 26, 2002
- AKG Acoustics GmbH
- Hugo Lenhard-Backhaus
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Headphone
- Publication number 20040216946
- Publication date Nov 4, 2004
- Hugo Lenhard-Backhaus
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Headphone
- Publication number 20040213428
- Publication date Oct 28, 2004
- Hugo Lenhard-Backhaus
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Magnet system of a sound transducer
- Publication number 20040197005
- Publication date Oct 7, 2004
- Hugo Lenhard-Backhaus
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Electroacoustic transducer
- Publication number 20030053649
- Publication date Mar 20, 2003
- Richard Pribyl
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Lacquer-coated wire
- Publication number 20030054192
- Publication date Mar 20, 2003
- AKG Acoustics GmbH
- Werner Fidi
- H01 - BASIC ELECTRIC ELEMENTS