Johnson, Jr.; Edwin C.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Johnson, Jr.; Edwin C..The latest application filed is for "two layer microphone protection".
- Johnson, Jr.; Edwin C. - Hopkinton MA
| Patent | Date |
|---|---|
| Two layer microphone protection Grant 10,897,669 - Ring , et al. January 19, 2 | 2021-01-19 |
| Directional acoustic device and method of manufacturing a directional acoustic device Grant 10,582,298 - Coffey , et al. | 2020-03-03 |
| Two Layer Microphone Protection App 20200053458 - RING; Martin David ; et al. | 2020-02-13 |
| Headphone on-head detection using differential signal measurement Grant 10,051,371 - Johnson, Jr. August 14, 2 | 2018-08-14 |
| Microphone compatibility Grant 9,712,935 - Winter , et al. July 18, 2 | 2017-07-18 |
| Microphone Compatability App 20170064477 - Winter; Kevin J. ; et al. | 2017-03-02 |
| Personal acoustic device position determination Grant 8,699,719 - Johnson, Jr. , et al. April 15, 2 | 2014-04-15 |
| Personal acoustic device position determination Grant 8,243,946 - Burge , et al. August 14, 2 | 2012-08-14 |
| Personal acoustic device position determination Grant 8,238,570 - Johnson, Jr. , et al. August 7, 2 | 2012-08-07 |
| Personal Acoustic Device Position Determination App 20100246846 - Burge; Benjamin D. ; et al. | 2010-09-30 |
| Personal Acoustic Device Position Determination App 20100246836 - Johnson, JR.; Edwin C. ; et al. | 2010-09-30 |
| Personal Acoustic Device Position Determination App 20100246847 - Johnson, JR.; Edwin C. ; et al. | 2010-09-30 |
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