Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7045359 | Method and apparatus to detect a gas by measuring ozone depletion | John W. Birks | 2006-05-16 |
| 6635415 | Nitric oxide gas detector | John W. Birks, Jill K. Robinson | 2003-10-21 |
| 6100096 | Nitric oxide detector | John W. Birks, Jill K. Gregory | 2000-08-08 |