Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5355685 | Purification of refrigerant | Carl Calame | 1994-10-18 |
| 5094102 | Liquid level detection | Clayton D. Fryer, Michael W. Wedel, Kenneth R. Stamper | 1992-03-10 |
| 4972705 | Liquid level detection | Clayton D. Fryer, Michael W. Wedel, Kenneth R. Stamper | 1990-11-27 |