Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7703773 | Seal ring and method | — | 2010-04-27 |
| 7624991 | Seal ring and method | — | 2009-12-01 |
| 5257792 | Well head metal seal | Jack K. Sarver, John W. Pierce | 1993-11-02 |
| 4989902 | Ratcheting and threaded well connector | — | 1991-02-05 |
| 4958686 | Subsea well completion system and method of operation | — | 1990-09-25 |
| 4773477 | Well suspension assembly | — | 1988-09-27 |
| 4232889 | Recockable well hanger | — | 1980-11-11 |