Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666417 | Fluorescence authentication reader with coaxial optics | Daniel A. Marinello, William J. Ryan, Donald L. Wray | 1997-09-09 |
| 5605738 | Tamper resistant system using ultraviolet fluorescent chemicals | William McGinness | 1997-02-25 |