Richard S. Roark

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Freeport, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Field rebuildable low frequency loudspeaker driver having a removab...
- Patent number 6,938,726
- Issue date Sep 6, 2005
- Mitek Corporation
- Richard S. Roark
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Low frequency loudspeaker driver having a polygonal diaphragm and m...
- Patent number 6,567,529
- Issue date May 20, 2003
- Mitek Corporation
- Richard S. Roark
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Recessed audio speaker system
- Patent number 6,154,555
- Issue date Nov 28, 2000
- Mitek Corporation
- Richard S. Roark
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Loudspeaker driver having a removable diaphragm assembly, parts kit...
- Publication number 20050185816
- Publication date Aug 25, 2005
- Richard S. Roark
- H04 - ELECTRIC COMMUNICATION TECHNIQUE