Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875000 | Current fault detection system and method for AC controller | John J. Fry, Edward Bastijanic | 1989-10-17 |
| 4852384 | Automatic calibration and control system for a combined oxygen and combustibles analyzer | Gordon D. Woolbert, Scotty Y. Jewett | 1989-08-01 |
| 4846410 | Apparatus for monitoring low-level combustibles | Scotty Y. Jewett, Gordon D. Woolbert | 1989-07-11 |