Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10899930 | Asymmetric pigment | — | 2021-01-26 |
| 10642214 | Optical security device based on a surface of revolution | Vladimir P. Raksha | 2020-05-05 |
| 10618340 | Security feature based on a single axis alignment of mirrors in a structured surface that forms a micro mirror array | Vladmir P. Raksha, Paul G. Coombs, Robert B. Sargent, Michael Ray Nofi | 2020-04-14 |
| 10597538 | Pigment composition and pigment flake | Alberto Argoitia | 2020-03-24 |
| 10479901 | Magnetic multilayer pigment flake and coating composition | Vladimir P. Raksha, Paul T. Kohlmann, Paul G. Coombs | 2019-11-19 |
| 10329429 | Microstructured device with embossed layer | Alberto Argoitia, Lily O'Boyle, Laurence Holden | 2019-06-25 |
| 10308812 | Flakes with undulate borders and method of forming thereof | Alberto Argoitia, Laurence Holden | 2019-06-04 |
| 10300729 | Optical security device comprising a layer having a microstructured surface and a dielectric layer filling in or complementary to the microstructured surface | Paul T. Kohlmann, Alberto Argoitia | 2019-05-28 |
| 10189997 | Colorant including a mixture of pigments | Vladimir P. Raksha, David de la Fuente | 2019-01-29 |
| 10061065 | Interference pigments or foils as separate structures having color match or mismatch depending on viewing angle | Matthew R. Witzman, Paul T. Kohlmann, Charles T. Markantes | 2018-08-28 |
| 10031269 | Durable optical interference pigment with a bimetal core | Charles T. Markantes, Vladimir P. Raksha, David de la Fuente, Paul G. Coombs | 2018-07-24 |
| 9845398 | Magnetic multilayer pigment flake and coating composition | Vladimir P. Raksha, Paul T. Kohlmann, Paul G. Coombs | 2017-12-19 |
| 9827805 | Optically variable device comprising magnetic flakes | Alberto Argoitia, Patrick Laden | 2017-11-28 |
| 9796856 | Colorant including a mixture of pigments | Vladimir P. Raksha, David de la Fuente | 2017-10-24 |
| 9732229 | Diffractive pigment blend and composition | Alberto Argoitia | 2017-08-15 |
| 9561682 | Multi color-shifting devices comprising a layer having a microstructured surface and a dielectric non-conforming layer | Paul T. Kohlmann, Alberto Argoitia | 2017-02-07 |
| 9508475 | Magnetic multilayer pigment flake and coating composition | Vladimir P. Raksha, Paul T. Kohlmann, Paul G. Coombs | 2016-11-29 |
| 9482800 | Durable optical interference pigment with a bimetal core | Charles T. Markantes, Vladimir P. Raksha, David de la Fuente, Paul G. Coombs | 2016-11-01 |
| 9458324 | Flakes with undulate borders and method of forming thereof | Alberto Argoitia, Laurence Holden | 2016-10-04 |
| 9164575 | Provision of frames or borders around pigment flakes for covert security applications | Alberto Argoitia, Stacey A. Yamanaka, Wilfred C. Kittler, Jr. | 2015-10-20 |
| RE45762 | Printed magnetic ink overt security image | Vladimir P. Raksha, Paul G. Coombs, Charles T. Markantes, Alberto Argoitia | 2015-10-20 |
| 8999616 | Taggent flakes for covert security applications having a selected shape | Alberto Argoitia | 2015-04-07 |
| 8658280 | Taggent flakes for covert security applications having a selected shape | Alberto Argoitia | 2014-02-25 |
| 8323542 | Substrate and method of manufacturing polygon flakes | Alberto Argoitia, Vladimir P. Raksha | 2012-12-04 |
| 8137762 | Two-axial alignment of magnetic platelets | Vladimir P. Raksha, Paul G. Coombs, Charles T. Markantes, Wilfred C. Kittler, Jr., Dave Williams +1 more | 2012-03-20 |