Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882569 | Deactivatable fequency-dividing-transponder tag | — | 1989-11-21 |
| 4835028 | Secure paper product | William R. Menyhert | 1989-05-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882569 | Deactivatable fequency-dividing-transponder tag | — | 1989-11-21 |
| 4835028 | Secure paper product | William R. Menyhert | 1989-05-30 |