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Patent applications and USPTO patent grants for Roark; Richard S..The latest application filed is for "loudspeaker driver having a removable diaphragm assembly, parts kit and method for rebuilding a loudspeaker driver in the field".
Patent | Date |
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Mountable sound pressure level meter Grant 7,021,142 - Roark April 4, 2 | 2006-04-04 |
Field rebuildable low frequency loudspeaker driver having a removable diaphragm assembly, parts kit and method for rebuilding a loudspeaker driver in the field Grant 6,938,726 - Roark , et al. September 6, 2 | 2005-09-06 |
Loudspeaker driver having a removable diaphragm assembly, parts kit and method for rebuilding a loudspeaker driver in the field App 20050185816 - Roark, Richard S. ;   et al. | 2005-08-25 |
Mountable sound pressure level meter App 20040089071 - Roark, Richard S. | 2004-05-13 |
Recessed audio speaker system Grant 6,154,555 - Roark November 28, 2 | 2000-11-28 |
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