| 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 |