Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835521 | Fluid status detector | Raymond J. Andrejasich, Bruce A. Clarkson | 1989-05-30 |
| 4835522 | Tank inventory and leak detection system | Raymond J. Andrejasich, Sara M. Mussmann | 1989-05-30 |
| 4835717 | Intelligent line pressure probe | Hilary Michel | 1989-05-30 |