Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5132687 | Electronic identification system | Conrad M. B. Walker, William K. Brockelsby | 1992-07-21 |
| 4937581 | Electronic identification system | Conrad M. B. Walker, William K. Brockelsby | 1990-06-26 |
| 4870419 | Electronic identification system | Conrad M. B. Walker, William K. Brockelsby | 1989-09-26 |