Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5744519 | Ink composition for marking nonpourous supports | Pierre De Saint-Romain | 1998-04-28 |
| 5702511 | Ink composition for marking and authenticating objects | Pierre De Saint-Romain | 1997-12-30 |