Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5375812 | Dynamic metal-to-metal seal | — | 1994-12-27 |
| 5370362 | Gate valve | Anton J. Dach, Jr., Hernani G. DeOcampo, Ted D. Williams | 1994-12-06 |
| 5311947 | Preselected casing tensioning system | Norman Brammer | 1994-05-17 |
| 5307879 | Positive lockdown for metal seal | — | 1994-05-03 |