Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7754112 | Methods for forming security articles having diffractive surfaces and color shifting backgrounds | Richard L. Bonkowski, Charles T. Markantes, Roger W. Phillips | 2010-07-13 |
| 7224528 | Optically variable security devices | Roger W. Phillips, Richard L. Bonkowski, Charles T. Markantes | 2007-05-29 |
| 7029745 | Security articles having diffractive surfaces and color shifting backgrounds | Richard L. Bonkowski, Charles T. Markantes, Roger W. Phillips | 2006-04-18 |
| 7005178 | Security articles having diffractive surfaces and color shifting backgrounds | Richard L. Bonkowski, Charles T. Markantes, Roger W. Phillips | 2006-02-28 |
| 6761959 | Diffractive surfaces with color shifting backgrounds | Richard L. Bonkowski, Charles T. Markantes, Roger W. Phillips | 2004-07-13 |
| 6114018 | Paired optically variable article with paired optical structures and ink, paint and foil incorporating the same and method | Roger W. Phillips, Charles T. Markantes, Shari Powell Fisher, Robert G. Slusser, Anton Bleikolm | 2000-09-05 |
| 5766738 | Paired optically variable article with paired optically variable structures and ink, paint and foil incorporating the same and method | Roger W. Phillips, Charles T. Markantes, Shari Powell Fisher, Robert G. Slusser, Anton Bleikolm | 1998-06-16 |
| 5424119 | Polymeric sheet having oriented multilayer interference thin film flakes therein, product using the same and method | Roger W. Phillips, Paul G. Coombs, Charles T. Markantes | 1995-06-13 |
| 4581282 | Enhanced durability solar insulating window film and assembly using the same | Roger W. Phillips, James K. Snyder | 1986-04-08 |
| 4565719 | Energy control window film systems and methods for manufacturing the same | Roger W. Phillips, Peter H. Berning | 1986-01-21 |