Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4541988 | Constant temperature catalytic gas detection instrument | John E. Tozier, Richard Critchlow | 1985-09-17 |
| 4447397 | Catalytic gas sensor | Robert L. Novack, Beth Tomasovic | 1984-05-08 |