Issued Patents All Time
Showing 26–50 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7754112 | Methods for forming security articles having diffractive surfaces and color shifting backgrounds | Richard L. Bonkowski, Patrick K. Higgins, Roger W. Phillips | 2010-07-13 |
| 7717038 | Magnetic plate for printing of optical effects | Vladimir P. Raksha, Jay M. Holman, Paul G. Coombs, Neil Teitelbaum | 2010-05-18 |
| 7674501 | Two-step method of coating an article for security printing by application of electric or magnetic field | Vladimir P. Raksha, Paul G. Coombs, Neil Teitelbaum, Alberto Argoitia | 2010-03-09 |
| 7604855 | Kinematic images formed by orienting alignable flakes | Vladimir P. Raksha, Paul G. Coombs, Jay M. Holman, Neil Teitelbaum | 2009-10-20 |
| 7550197 | Non-toxic flakes for authentication of pharmaceutical articles | Wilfred C. Kittler, Jr., Alberto Argoitia, Paul G. Coombs | 2009-06-23 |
| 7517578 | Method and apparatus for orienting magnetic flakes | Vladimir P. Raksha, Paul G. Coombs, Dishuan Chu, Jay M. Holman, Alberto Argoitia | 2009-04-14 |
| 7285336 | Robust multilayer magnetic pigments and foils | Vladimir P. Raksha, Paul G. Coombs, Dishuan Chu | 2007-10-23 |
| 7258900 | Magnetic planarization of pigment flakes | Vladimir P. Raksha, Dishuan Chu, Paul G. Coombs | 2007-08-21 |
| 7258915 | Flake for covert security applications | Alberto Argoitia, Paul G. Coombs, Paul T. Kohlmann | 2007-08-21 |
| 7241489 | Opaque flake for covert security applications | Alberto Argoitia, Paul G. Coombs | 2007-07-10 |
| 7224528 | Optically variable security devices | Roger W. Phillips, Richard L. Bonkowski, Patrick K. Higgins | 2007-05-29 |
| 7184133 | Automated verification systems and method for use with optical interference devices | Paul G. Coombs, Donald M. Friedrich, Ken D. Cardell, Curtis R. Hruska, Shaun Frank McCaffery +3 more | 2007-02-27 |
| 7169472 | Robust multilayer magnetic pigments and foils | Vladimir P. Raksha, Paul G. Coombs, Dishuan Chu | 2007-01-30 |
| 7047883 | Method and apparatus for orienting magnetic flakes | Vladimir P. Raksha, Paul G. Coombs, Dishuan Chu, Jay M. Holman | 2006-05-23 |
| 7029745 | Security articles having diffractive surfaces and color shifting backgrounds | Richard L. Bonkowski, Patrick K. Higgins, Roger W. Phillips | 2006-04-18 |
| 7005178 | Security articles having diffractive surfaces and color shifting backgrounds | Richard L. Bonkowski, Patrick K. Higgins, Roger W. Phillips | 2006-02-28 |
| 7006204 | Automated verification systems and methods for use with optical interference devices | Paul G. Coombs, Donald M. Friedrich, Ken D. Cardell, Curtis R. Hruska | 2006-02-28 |
| 6997981 | Thermal control interface coatings and pigments | Paul G. Coombs, Roger W. Phillips | 2006-02-14 |
| 6970236 | Methods and systems for verification of interference devices | Paul G. Coombs | 2005-11-29 |
| 6913808 | Barrier film having high colorless transparency and method | Roger W. Phillips, Lauren R. Wendt, Myra Tan-Johnson, David W. Todd | 2005-07-05 |
| 6841238 | Chromatic diffractive pigments and foils | Alberto Argoitia, Roger W. Phillips, Michael Ray Nofi, Paul G. Coombs, Richard A. Bradley, Jr. | 2005-01-11 |
| 6838166 | Multi-layered magnetic pigments and foils | Roger W. Phillips, Charlotte R. LeGallee, Paul G. Coombs, Thomas Mayer | 2005-01-04 |
| 6818299 | Multi-layered magnetic pigments and foils | Roger W. Phillips, Charlotte R. LaGallee, Paul G. Coombs | 2004-11-16 |
| 6808806 | Methods for producing imaged coated articles by using magnetic pigments | Roger W. Phillips, Charlotte R. LeGallee, Paul G. Coombs, Matthew R. Witzman | 2004-10-26 |
| 6761959 | Diffractive surfaces with color shifting backgrounds | Richard L. Bonkowski, Patrick K. Higgins, Roger W. Phillips | 2004-07-13 |