Issued Patents All Time
Showing 126–148 of 148 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701954 | High temperature, high pressure retrievable packer | Marion D. Kilgore | 1997-12-30 |
| 5685372 | Temporary plug system | — | 1997-11-11 |
| 5613559 | Decentralizing centralizing locating and orienting subsystems and methods for subterranean multilateral well drilling and completion | Jimmie R. Williamson, Jr., David L. Reesing | 1997-03-25 |
| 5566763 | Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion | Jimmie R. Williamson, Jr., David L. Reesing | 1996-10-22 |
| 5564502 | Well completion system with flapper control valve | Robert W. Crow, Nam V. Le, James R. Longbottom, Karluf Hagen | 1996-10-15 |
| 5564503 | Methods and systems for subterranean multilateral well drilling and completion | James R. Longbottom, Don C. Cox, William R. Welch, Pat M. White | 1996-10-15 |
| 5507346 | Composite well flow conductor | Donald D. Baldwin, John A. Reigle | 1996-04-16 |
| 5501281 | Torque-resistant, seal setting force-limited, hydraulically settable well packer structure and associated methods | Pat M. White | 1996-03-26 |
| 5499680 | Diverter, diverter retrieving and running tool and method for running and retrieving a diverter | Jeffrey S. Walter, Desmond Jones | 1996-03-19 |
| 5499681 | Centralizing liner hanger method and system for subterranean multilateral well drilling | Pat M. White | 1996-03-19 |
| 5479986 | Temporary plug system | Jim Longbottom, Bill W. Loughridge, Lance E. Brothers | 1996-01-02 |
| 5211226 | Metal-to-metal seal for oil well tubing string | James D. Hendrickson, William David Henderson | 1993-05-18 |
| 5183115 | Safety valve | — | 1993-02-02 |
| 5141023 | Flow actuated safety valve | William W. Dollison | 1992-08-25 |
| 4796698 | Landing nipple and plug | — | 1989-01-10 |
| 4749046 | Well drilling and completion apparatus | — | 1988-06-07 |
| 4749045 | Well drilling and completion apparatus | — | 1988-06-07 |
| 4730677 | Method and system for maintenance and servicing of subsea wells | Joseph L. Pearce, Phillip S. Sizer, John H. Yonker, Robert L. Thurman, James O'Sullivan +4 more | 1988-03-15 |
| 4702320 | Method and system for attaching and removing equipment from a wellhead | Kenneth L. Schwendemann, Timothy J. Noack, Craig W. Godfrey | 1987-10-27 |
| 4691781 | Well drilling and completion apparatus | — | 1987-09-08 |
| 4582134 | Well packer | Donald H. Perkins | 1986-04-15 |
| 4535968 | Valve | Gary Allen Kohn | 1985-08-20 |
| 4512399 | Well packer | Donald H. Perkins | 1985-04-23 |