Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5180008 | Wellhead seal for wide temperature and pressure ranges | Tod Aldridge, John A. Fitzgerald, Ronald D. Quates, Rudolf R. Schoen, Appavoo Thangarasu +1 more | 1993-01-19 |