Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5309764 | Tank gauging system | Mark Stanley Waldrop, Raymond S. Ohashi | 1994-05-10 |
| 4930041 | Potentiometer position switch circuit | Richard Paul Granada, Royal E. Howes | 1990-05-29 |
| 4862734 | Leak detection system for storage tanks | — | 1989-09-05 |
| 4417474 | Densitometer | — | 1983-11-29 |