Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11952840 | Managed pressure drilling system and method of use | Alan Reid | 2024-04-09 |
| 6708766 | Wellhead assembly for communicating with the casing hanger annulus | — | 2004-03-23 |
| 6705401 | Ported subsea wellhead | Kevin G. Buckle, John H. Osborne, Bernard Humprey, Alfred Massie | 2004-03-16 |
| 6394194 | Method and apparatus for a drill cutting injection system | Michael Queen, James David Mathers Peter, Norman Brammer | 2002-05-28 |