Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862143 | Method and apparatus for detecting counterfeit articles | Jay L. Hirshfield | 1989-08-29 |
| 4742340 | Method and apparatus for detecting counterfeit articles | Jay L. Hirshfield | 1988-05-03 |