Issued Patents All Time
Showing 101–125 of 133 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5074712 | Method and apparatus for remote repair of subsea pipelines | — | 1991-12-24 |
| 5046895 | ROV service system | — | 1991-09-10 |
| 5004273 | Tieback thread with angular freedom | — | 1991-04-02 |
| 4913469 | Wellhead slip and seal assembly | — | 1990-04-03 |
| 4899837 | Mud saver valve | — | 1990-02-13 |
| 4878783 | Hydraulic stab connector with angular freedom | — | 1989-11-07 |
| 4863314 | Hydraulic stab connector, frictionless | — | 1989-09-05 |
| 4827745 | Lockset security device | — | 1989-05-09 |
| 4824074 | Bi-directional gate valve | — | 1989-04-25 |
| 4811558 | System and method for providing compressed gas | — | 1989-03-14 |
| 4779688 | Mud saver valve | — | 1988-10-25 |
| 4693498 | Anti-rotation tubular connection for flowlines or the like | Narayana N. Panicker | 1987-09-15 |
| 4673313 | Marine production riser and method for installing same | Narayana N. Panicker | 1987-06-16 |
| 4661016 | Subsea flowline connector | Narayana N. Panicker | 1987-04-28 |
| 4651831 | Subsea tubing hanger with multiple vertical bores and concentric seals | — | 1987-03-24 |
| 4647254 | Marine riser structural core connector | Narayana N. Panicker | 1987-03-03 |
| 4641998 | Underwater connection apparatus | — | 1987-02-10 |
| 4632603 | Marine riser base system | — | 1986-12-30 |
| 4629003 | Guilelineless subsea completion system with horizontal flowline connection | — | 1986-12-16 |
| 4615544 | Subsea wellhead system | — | 1986-10-07 |
| 4597448 | Subsea wellhead system | — | 1986-07-01 |
| 4564068 | Emergency release for subsea tool | — | 1986-01-14 |
| 4548273 | Torque multiplier subsea tool | Frederick M. Leicht, Harish C. Palany | 1985-10-22 |
| 4540053 | Breech block hanger support well completion method | Herman O. Henderson, Jr., John H. Fowler | 1985-09-10 |
| 4516795 | Torus type connector | — | 1985-05-14 |