Tamkin; John Michael
Patent Applications and Registrations
Patent applications and USPTO patent grants for Tamkin; John Michael.The latest application filed is for "optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products".
- Tamkin; John Michael - Pasadena CA
- Tamkin; John Michael - San Marino CA
| Patent | Date |
|---|---|
| Optical Products, Masters For Fabricating Optical Products, And Methods For Manufacturing Masters And Optical Products App 20220276501 - Rich; Christopher Chapman ; et al. | 2022-09-01 |
| Optical Switch Devices App 20220237979 - Rich; Christopher Chapman ; et al. | 2022-07-28 |
| Optical Switch Devices App 20220221735 - Rich; Christopher Chapman ; et al. | 2022-07-14 |
| Animated optical security feature Grant 11,221,448 - Rich , et al. January 11, 2 | 2022-01-11 |
| Optical Switch Devices App 20210347194 - Rich; Christopher Chapman ; et al. | 2021-11-11 |
| Optical switch devices Grant 11,113,919 - Rich , et al. September 7, 2 | 2021-09-07 |
| Optical Switch Devices App 20200400892 - Rich; Christopher Chapman ; et al. | 2020-12-24 |
| Optical switch devices Grant 10,850,550 - Rich , et al. December 1, 2 | 2020-12-01 |
| Optical Products, Masters For Fabricating Optical Products, And Methods For Manufacturing Masters And Optical Products App 20200039279 - Rich; Christopher Chapman ; et al. | 2020-02-06 |
| Optical Switch Devices App 20190236887 - Rich; Christopher Chapman ; et al. | 2019-08-01 |
| Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products Grant 10,252,563 - Rich , et al. | 2019-04-09 |
| Photorefraction method and product Grant 9,877,649 - Tamkin , et al. January 30, 2 | 2018-01-30 |
| Optical Switch Devices App 20180001692 - Rich; Christopher Chapman ; et al. | 2018-01-04 |
| Optical Products, Masters For Fabricating Optical Products, And Methods For Manufacturing Masters And Optical Products App 20170129272 - Rich; Christopher Chapman ; et al. | 2017-05-11 |
| Photorefraction Method And Product App 20170112378 - Tamkin; John Michael ; et al. | 2017-04-27 |
| Visual Acuity Testing Method And Product App 20170112373 - Burns; Andrew A. ; et al. | 2017-04-27 |
| Optical system for direct imaging of light markable material Grant 8,570,356 - Tamkin , et al. October 29, 2 | 2013-10-29 |
| Wearable Multi-Channel Camera App 20100328471 - Boland; Justin ; et al. | 2010-12-30 |
| Optical System for Direct Imaging of Light Markable Media App 20100309279 - Tamkin; John Michael ; et al. | 2010-12-09 |
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