Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7798208 | Wellhead assembly and method | — | 2010-09-21 |
| 7145471 | Sequential hydraulic control system for use in a subterranean well | Michael A. Reid | 2006-12-05 |
| 7013980 | Hydraulically actuated control system for use in a subterranean well | Alfred R. Curington | 2006-03-21 |
| 6595292 | Method and apparatus for use with two or more hydraulic conduits deployed downhole | Michael A. Reid, Stephen Reid | 2003-07-22 |
| 6585051 | Hydraulically operated fluid metering apparatus for use in a subterranean well, and associated methods | Michael A. Reid, Jimmie R. Williamson, Jr. | 2003-07-01 |
| 6575237 | Hydraulic well control system | Brett W. Bouldin | 2003-06-10 |
| 6567013 | Digital hydraulic well control system | Brett W. Bouldin | 2003-05-20 |
| 6273189 | Downhole tractor | Robert William Gissler, Michael W. Holcombe | 2001-08-14 |
| 6179052 | Digital-hydraulic well control system | Brett W. Bouldin | 2001-01-30 |