Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4914038 | Apparatus and method for avoiding circumvention of an identity confirming breath tester | — | 1990-04-03 |
| 4901058 | Sobriety interlock with bypass detection | Felix J.E. Comeau, Herman Quast | 1990-02-13 |