Barr; John Kennedy
Patent Applications and Registrations
Patent applications and USPTO patent grants for Barr; John Kennedy.The latest application filed is for "layered security in digital watermarking".
- Barr; John Kennedy - Tigard OR
| Patent | Date |
|---|---|
| Layered security in digital watermarking Grant 8,345,316 - Bradley , et al. January 1, 2 | 2013-01-01 |
| Layered security in digital watermarking Grant 8,190,901 - Barr , et al. May 29, 2 | 2012-05-29 |
| Layered Security in Digital Watermarking App 20100091336 - Bradley; Brett Alan ; et al. | 2010-04-15 |
| Layered security in digital watermarking Grant 7,519,819 - Bradley , et al. April 14, 2 | 2009-04-14 |
| Layered security in digital watermarking App 20040039914 - Barr, John Kennedy ; et al. | 2004-02-26 |
| Layered security in digital watermarking App 20030223584 - Bradley, Brett Alan ; et al. | 2003-12-04 |
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