Gerhardt; John F
Patent Applications and Registrations
Patent applications and USPTO patent grants for Gerhardt; John F.The latest application filed is for "donned and doffed headset state detection".
- Gerhardt; John F - Los Gatos CA
- Gerhardt; John F. - Los Gatos CA
| Patent | Date |
|---|---|
| Donned and doffed headset state detection Grant 8,559,621 - Gerhardt , et al. October 15, 2 | 2013-10-15 |
| Donned and doffed headset state detection Grant 8,538,009 - Gerhardt , et al. September 17, 2 | 2013-09-17 |
| Donned And Doffed Headset State Detection App 20130210497 - Gerhardt; John F. ; et al. | 2013-08-15 |
| Donned And Doffed Headset State Detection App 20130095894 - Gerhardt; John F. ; et al. | 2013-04-18 |
| Donned and doffed headset state detection Grant 8,335,312 - Gerhardt , et al. December 18, 2 | 2012-12-18 |
| Donned and doffed headset state detection App 20080080705 - Gerhardt; John F. ; et al. | 2008-04-03 |
| Echo reduction for a headset or handset Grant 7,227,944 - Gerhardt , et al. June 5, 2 | 2007-06-05 |
| Echo reduction for a headset or handset Grant 7,039,179 - Gerhardt , et al. May 2, 2 | 2006-05-02 |
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