| 7195224 |
Blowout preventer and locking mechanism |
— |
2007-03-27 |
| 6930048 |
Etching a metal hard mask for an integrated circuit structure |
Siyi Li, S.M. Sadjadi, Sean S. Kang, Bi-Ming Yen, Scott Briggs |
2005-08-16 |
| 6719042 |
Shear ram assembly |
Christopher Johnson, George Tisdale, Esteban Palomo, Jr. |
2004-04-13 |
| 6630407 |
Plasma etching of organic antireflective coating |
Douglas Keil, Jim Bowers, Eric Wagganer, Rao Annapragada |
2003-10-07 |
| 5505426 |
Hydraulically controlled blowout preventer |
Melvyn F. Whitby, David L. O'Donnell |
1996-04-09 |
| 5199683 |
Blowout preventer opening mechanism |
— |
1993-04-06 |
| 5158264 |
Parallel expanding gate valve |
Paul L. Tasson, Scott K. Beall |
1992-10-27 |
| 5114158 |
Packing assembly for oilfield equipment and method |
— |
1992-05-19 |
| 5064164 |
Bop seal with improved metal inserts |
— |
1991-11-12 |
| 5011110 |
BOP seal with improved metal inserts |
— |
1991-04-30 |
| 4650225 |
Hydraulic holddown screw with mechanical retention means |
F. Harold Hollister |
1987-03-17 |
| 4650226 |
Holddown screw |
Brett A. Babbitt |
1987-03-17 |
| 4575106 |
High pressure sealing connection with metal seal |
F. Harold Hollister, Danny S. Meyer |
1986-03-11 |
| 4556224 |
Crossover seal assembly |
— |
1985-12-03 |
| 4535967 |
Expanding gate valve with fluid-powered actuator |
Brett A. Babbitt, Bruce P. Noble |
1985-08-20 |
| 4516752 |
Mechanically preloaded packing assembly |
Brett A. Babbitt |
1985-05-14 |
| 4468039 |
Packing ring cartridge with adjusting screws |
Danny S. Meyer, John B. Williams, Jr. |
1984-08-28 |
| 4407516 |
Pressure energized sealing connection with annular seal ring |
Bruce P. Noble |
1983-10-04 |
