Mark Trainer

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Stevenson Ranch, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Tangential stress reduction system in a loudspeaker suspension
- Patent number 7,438,155
- Issue date Oct 21, 2008
- Harman International Industries, Incorporated
- Brendon Stead
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Tangential stress reduction system in a loudspeaker suspension
- Patent number 7,174,990
- Issue date Feb 13, 2007
- Harman International Industries, Incorporated
- Brendon Stead
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Tangential stress reduction system in a loudspeaker suspension
- Patent number 6,851,513
- Issue date Feb 8, 2005
- Harvard International Industries, Incorporated
- Brendon Stead
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
Tangential stress reduction system in a loudspeaker suspension
- Publication number 20070272475
- Publication date Nov 29, 2007
- Brendon Stead
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Tangential stress reduction system in a loudspeaker suspension
- Publication number 20050185817
- Publication date Aug 25, 2005
- Brendon Stead
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Diaphragm suspension assembly for loudspeaker transducers
- Publication number 20030121718
- Publication date Jul 3, 2003
- Brendon Stead
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Tangential stress reduction system in a loudspeaker suspension
- Publication number 20020170773
- Publication date Nov 21, 2002
- Harman International Industries, Incorporated
- Brendon Stead
- G10 - MUSICAL INSTRUMENTS ACOUSTICS