| 11193350 |
Well tool having a removable collar for allowing production fluid flow |
Nicholas A. Kuo, Matthew Roseman, Luke William Holderman |
2021-12-07 |
| 9650863 |
Safety valve system for cable deployed electric submersible pump |
— |
2017-05-16 |
| 9587462 |
Safety valve system for cable deployed electric submersible pump |
James Dan Vick, Jr., Leo G. Collins, Tom Swan, Gary L. Stephenson |
2017-03-07 |
| 7717183 |
Top-down hydrostatic actuating module for downhole tools |
Michael Dale Ezell, Roderick Brand Falconer, James W. Scott |
2010-05-18 |
| 5117906 |
Compact, retrievable packer |
Henry L. Restarick, John R. Setterberg, Jr., Pat. M. White |
1992-06-02 |
| 4886113 |
Positive indication shear ring |
Colby M. Ross, James D. Hendrickson |
1989-12-12 |
| 4846281 |
Dual flapper valve assembly |
Sammy R. Clary, Richard M. Sproul |
1989-07-11 |
| 4840229 |
Multiple position service seal unit with positive position indicating means |
Lewis D. Proctor, Colby M. Ross, Brian P. Manzi |
1989-06-20 |
| 4832129 |
Multi-position tool and method for running and setting a packer |
Richard M. Sproul, Carter R. Young, John B. Wilkie, Jr. |
1989-05-23 |
| 4813481 |
Expendable flapper valve |
Richard M. Sproul, Richard L. Grant, Kennedy J. Brown |
1989-03-21 |
| 4722392 |
Multiple position service seal unit with positive position indicating means |
Lewis D. Proctor, Colby M. Ross, Brian P. Manzi |
1988-02-02 |