Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8418523 | Calibration and accuracy check system for a breath tester | Keith Lueck | 2013-04-16 |
| 5291898 | Breath alcohol device | — | 1994-03-08 |
| 4770026 | Method of and apparatus for testing breath alcohol | — | 1988-09-13 |
| 4744953 | Breath flow indicator | Macquorn Forrester | 1988-05-17 |
| 4487055 | Breath alcohol testing device | — | 1984-12-11 |