Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9376881 | High-capacity single-trip lockdown bushing and a method to operate the same | Nicholas P. Gette, Daniel Ralph Barnhart | 2016-06-28 |
| 8695700 | Seal with enhanced nose ring | Nicholas P. Gette | 2014-04-15 |
| 5464063 | Well assembly metal seal | — | 1995-11-07 |
| 5456314 | Wellhead annulus seal | David L. Ford, Herman O. Henderson, Jr. | 1995-10-10 |
| 5285853 | Casing hanger seal with test port | Lawrence A. Eckert | 1994-02-15 |
| 5067734 | Metal seal with grooved inlays | — | 1991-11-26 |
| 4932472 | Packoff with flexible section for casing hanger | — | 1990-06-12 |
| 4751968 | Wellhead stabilizing member with deflecting ribs | Thomas J. Ames | 1988-06-21 |
| 4665979 | Metal casing hanger seal with expansion slots | — | 1987-05-19 |