Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6776933 | Method of manufacturing a security item | Christopher John Fice | 2004-08-17 |
| 5492370 | Decorative article | Ralph Kay | 1996-02-20 |
| 5438928 | Signature panels | Karen S. Walker | 1995-08-08 |
| 5413839 | Transfer film | Karen S. Walker | 1995-05-09 |
| 5310222 | Optical device | Ralph Kay, Martin C. Gomme, David Ezra | 1994-05-10 |