Issued Patents All Time
Showing 76–85 of 85 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6220363 | Wellhead isolation tool and method of using same | — | 2001-04-24 |
| 6179053 | Lockdown mechanism for well tools requiring fixed-point packoff | — | 2001-01-30 |
| 6145596 | Method and apparatus for dual string well tree isolation | — | 2000-11-14 |
| 5927403 | Apparatus for increasing the flow of production stimulation fluids through a wellhead | — | 1999-07-27 |
| 5819851 | Blowout preventer protector for use during high pressure oil/gas well stimulation | — | 1998-10-13 |
| 5785121 | Blowout preventer protector and method of using same during oil and gas well stimulation | — | 1998-07-28 |
| 5615739 | Apparatus and method for completing and recompleting wells for production | — | 1997-04-01 |
| 5540282 | Apparatus and method for completing/recompleting production wells | — | 1996-07-30 |
| 5332044 | Wellhead isolation tool and method of use | Boyd B. English | 1994-07-26 |
| 4867243 | Wellhead isolation tool and setting and method of using same | Jonathan W. Garner | 1989-09-19 |