Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11554603 | Security feature based on a single axis alignment of mirrors in a structured surface that forms a micro mirror array | Cornelis Jan Delst, Vladimir P. Raksha, Paul G. Coombs, Robert B. Sargent | 2023-01-17 |
| 10981410 | Security feature based on a single axis alignment of mirrors in a structured surface that forms a micro mirror array | Cornelis Jan Delst, Vladimir P. Raksha, Paul G. Coombs, Robert B. Sargent | 2021-04-20 |
| 10618340 | Security feature based on a single axis alignment of mirrors in a structured surface that forms a micro mirror array | Cornelis Jan Delst, Vladmir P. Raksha, Paul G. Coombs, Robert B. Sargent | 2020-04-14 |
| 8511712 | Mixture of magnetically orientable color shifting flakes and non-magnetically orientable color shifting flakes exhibiting a common color | Vladimir P. Raksha, Charles T. Markantes, Paul G. Coombs | 2013-08-20 |
| 6841238 | Chromatic diffractive pigments and foils | Alberto Argoitia, Roger W. Phillips, Paul G. Coombs, Charles T. Markantes, Richard A. Bradley, Jr. | 2005-01-11 |