Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6617556 | Method and apparatus for heating a submarine pipeline | — | 2003-09-09 |
| 5094102 | Liquid level detection | Clayton D. Fryer, Kenneth E. Stie, Kenneth R. Stamper | 1992-03-10 |
| 4972705 | Liquid level detection | Clayton D. Fryer, Kenneth E. Stie, Kenneth R. Stamper | 1990-11-27 |