Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5355959 | Differential pressure operated circulating and deflation valve | James C. Tucker, John C. Zimmerman | 1994-10-18 |
| 5332042 | Fluid control valve | Kenneth D. Caskey, Clinton W. Cole | 1994-07-26 |