Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4894539 | Leak detector | — | 1990-01-16 |
| 4471223 | Level and interface detection | David M. Gilhen, Peter Jackson | 1984-09-11 |
| 4468559 | Determining valve position | Peter J. Jackson | 1984-08-28 |