Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4935628 | Method and apparatus for detecting inks | Anthony N. Martin | 1990-06-19 |
| 4875589 | Monitoring system | Anthony N. Martin | 1989-10-24 |
| 4710963 | Apparatus for sensing the condition of a document | Victor B. Chapman | 1987-12-01 |