Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5240076 | Casing tension retainer | Stephen A. Cromar, Eric R. Schwelm, Garry Stephen, Ian Calder | 1993-08-31 |
| 5222560 | Full bore internal tieback system and method | Stanley Hosie | 1993-06-29 |
| 5199495 | Split wear bushing for a drilling rig | Herman O. Henderson, Jr., Richard W. Slyker | 1993-04-06 |
| 5188181 | Annulus shutoff device for a subsea well | Philippe C. Nobileau | 1993-02-23 |
| 5090737 | Downhole energizable seal for telescoping joints | Philippe C. Nobileau | 1992-02-25 |
| 5080173 | Tieback wellhead system with sidetrack facilities | — | 1992-01-14 |
| 5060724 | Casing hanger seal locking mechanism with detent | Philippe C. Nobileau | 1991-10-29 |
| 4962952 | Pressure tube with deflecting section | Joseph W. Pallini, Glenn Martin Wald | 1990-10-16 |
| 4949787 | Casing hanger seal locking mechanism | Philippe C. Nobileau | 1990-08-21 |
| 4903993 | Tieback connector with two point interference fit | — | 1990-02-27 |
| 4900066 | Pipe connector | Philippe C. Nobileau | 1990-02-13 |
| 4893842 | Wellhead tieback system with locking dogs | — | 1990-01-16 |
| 4893677 | Guidelineless reentry system with retracting rollers | Charles E. Jennings | 1990-01-16 |
| 4823878 | Guidelineless reentry system with fixed rollers | Charles E. Jennings | 1989-04-25 |
| 4823879 | Guidelineless reentry system with nonrotating funnel | Charles E. Jennings | 1989-04-25 |
| 4722391 | Wellhead system | — | 1988-02-02 |
| 4714111 | Weight/pressure set pack-off for subsea wellhead systems | — | 1987-12-22 |
| 4702481 | Wellhead pack-off with undulated metallic seal ring section | — | 1987-10-27 |
| 4696493 | Subsea wellhead tieback system | — | 1987-09-29 |
| 4601491 | Pipe connector | James L. Bell, Mark T. Thatcher, Brian K. Phillips, Thomas F. Sweeney | 1986-07-22 |