| 12188343 |
Sensor and actuator for autonomously detecting resistivity derivatives of wellbore fluids and closing fluid path |
Hector Jesus Elizondo, Ritesh Dharmendra Panchal, Jinhua Cao, Paul Joseph Jones |
2025-01-07 |
| 12060763 |
Cementing apparatus for reverse cementing |
Handoko Tirto Santoso, Lonnie Carl Helms, Jinhua Cao, Frank Acosta, Mayur Narain Ahuja +1 more |
2024-08-13 |
| 11898416 |
Shearable drive pin assembly |
Avinash Gopal Dharne, Lonnie Carl Helms, Frank Vinicio Acosta Villarreal, Priyanshkumar Prashantkumar Desai |
2024-02-13 |
| 11885197 |
External sleeve cementer |
Priyanshkumar Prashantkumar Desai, Lonnie Carl Helms, Frank Vinicia Acosta Villarreal, Handoko Tirto Santoso |
2024-01-30 |
| 11746618 |
Cementing apparatus for reverse cementing |
Handoko Tirto Santoso, Lonnie Carl Helms, Jinhua Cao, Frank Acosta, Mayur Narain Ahuja +1 more |
2023-09-05 |
| 11566489 |
Stage cementer packer |
Lonnie Carl Helms, Avinash Gopal Dharne, Frank Acosta, Priyanshkumar Prashantkumar Desai |
2023-01-31 |
| 11519242 |
Telescopic stage cementer packer |
Avinash Gopal Dharne, Lonnie Carl Helms, Frank Acosta |
2022-12-06 |
| 11230905 |
Buoyancy assist tool with waffle debris barrier |
Lonnie Carl Helms, Min Mark Yuan, Mayur Narain Ahuja, Byong Jun Kim, Rajesh Parameshwaraiah |
2022-01-25 |
| 11142994 |
Buoyancy assist tool with annular cavity and piston |
Min Mark Yuan, Lonnie Carl Helms, Mayur Narain Ahuja, Frank Acosta, Clayton Reed Bonn |
2021-10-12 |
| 11105166 |
Buoyancy assist tool with floating piston |
Min Mark Yuan, Lonnie Carl Helms, Mayur Narain Ahuja, Rajesh Parameshwaraiah |
2021-08-31 |
| 11072990 |
Buoyancy assist tool with overlapping membranes |
Min Mark Yuan, Mayur Narain Ahuja, Lonnie Carl Helms, Clayton Reed Bonn |
2021-07-27 |
| 10995583 |
Buoyancy assist tool with debris barrier |
Lonnie Carl Helms, Min Mark Yuan, Mayur Narain Ahuja, Rajesh Parameshwaraiah |
2021-05-04 |
| 10989013 |
Buoyancy assist tool with center diaphragm debris barrier |
Lonnie Carl Helms, Min Mark Yuan, Mayur Narain Ahuja, Byong Jun Kim, Rajesh Parameshwaraiah |
2021-04-27 |