Stewart; John C.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Stewart; John C..The latest application filed is for "active reverberation augmentation".
- Stewart; John C. - San Francisco CA
- Stewart; John C. - Stevensville MT
- Stewart; John C. - Novelty OH
Trademarks
| Patent | Date |
|---|---|
| Active reverberation augmentation Grant 10,438,580 - Porter , et al. O | 2019-10-08 |
| Active Reverberation Augmentation App 20180350341 - PORTER; Simon K. ; et al. | 2018-12-06 |
| Active reverberation augmentation Grant 10,019,981 - Porter , et al. July 10, 2 | 2018-07-10 |
| Automated Health Care Delivery Verification App 20130226607 - Woody; William F. ; et al. | 2013-08-29 |
| Airport marker system Grant 5,436,812 - Stewart July 25, 1 | 1995-07-25 |
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