Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5873305 | Method for protecting from forgery, assuring the authenticity of or personalizing pre-printed sheets | — | 1999-02-23 |
| 5862750 | Method for impressing directly on paper holograms, kinetic holograms, diffraction patterns or microengravings producing other optical effects | — | 1999-01-26 |