| 12209481 |
Frac plug device for high expansion at the setting position |
Matthew Patsy, Jianpeng Yue, Peng Cheng, YU-LIN LIU, Huailiang Liu |
2025-01-28 |
| 12139994 |
Frac plug device with an anchor mandrel assembly for a locked set configuration |
Matthew Patsy, Jianpeng Yue, Peng Cheng, Kwami ROBERTS |
2024-11-12 |
| 11603736 |
Buoyancy assist tool with degradable nose |
Lonnie Carl Helms, Frank Acosta |
2023-03-14 |
| 11512545 |
Downhole check valve assembly with a ratchet mechanism |
Stephen Yeldell, Lonnie Carl Helms, Frank Acosta, Kevin Wendell Ardoin |
2022-11-29 |
| 11499395 |
Flapper disk for buoyancy assisted casing equipment |
Rajesh Parameshwaraiah, Lonnie Carl Helms, Handoko Tirto Santoso |
2022-11-15 |
| 11492867 |
Downhole apparatus with degradable plugs |
Frank Acosta, Lonnie Carl Helms |
2022-11-08 |
| 11473395 |
Downhole check valve assembly with a locking mechanism |
Stephen Yeldell, Kevin Wendell Ardoin, Lonnie Carl Helms, Frank Acosta |
2022-10-18 |
| 11391115 |
Plug piston barrier |
Rajesh Parameshwaraiah |
2022-07-19 |
| 11391119 |
Differential fill valve with collet sleeve |
Rajesh Parameshwaraiah, Saul Emmanuel Vazquez Niebla, Lonnie Carl Helms, Mayur Narain Ahuja, Tor Sigve Saetre +1 more |
2022-07-19 |
| 11346171 |
Downhole apparatus |
Stephen Yeldell, Lonnie Carl Helms, Frank Acosta, Rajesh Parameshwaraiah |
2022-05-31 |
| 11313189 |
Downhole check valve assembly with a frustoconical mandrel |
Benny E. Dawsey, Lonnie Carl Helms, Stephen Yeldell |
2022-04-26 |
| 11293260 |
Buoyancy assist tool |
Avinash Gopal Dharne, Stephen Yeldell, Frank Acosta, Kevin Wendell Ardoin |
2022-04-05 |
| 11293261 |
Buoyancy assist tool |
Stephen Yeldell, Lonnie Carl Helms, Frank Acosta, Rajesh Parameshwaraiah, Kevin Wendell Ardoin |
2022-04-05 |
| 11255155 |
Downhole apparatus with removable plugs |
Frank Acosta, Lonnie Carl Helms, Rajesh Parameshwaraiah |
2022-02-22 |
| 11242720 |
Threadless float equipment and method |
Handoko Tirto Santoso, Stephen Yeldell, Frank Acosta, Rajesh Parameshwaraiah |
2022-02-08 |
| 11230905 |
Buoyancy assist tool with waffle debris barrier |
Lonnie Carl Helms, Mayur Narain Ahuja, Ishwar Dilip Patil, Byong Jun Kim, Rajesh Parameshwaraiah |
2022-01-25 |
| 11142994 |
Buoyancy assist tool with annular cavity and piston |
Lonnie Carl Helms, Mayur Narain Ahuja, Ishwar Dilip Patil, Frank Acosta, Clayton Reed Bonn |
2021-10-12 |
| 11105166 |
Buoyancy assist tool with floating piston |
Lonnie Carl Helms, Mayur Narain Ahuja, Ishwar Dilip Patil, Rajesh Parameshwaraiah |
2021-08-31 |
| 11072990 |
Buoyancy assist tool with overlapping membranes |
Ishwar Dilip Patil, Mayur Narain Ahuja, Lonnie Carl Helms, Clayton Reed Bonn |
2021-07-27 |
| 10995583 |
Buoyancy assist tool with debris barrier |
Lonnie Carl Helms, Mayur Narain Ahuja, Ishwar Dilip Patil, Rajesh Parameshwaraiah |
2021-05-04 |
| 10989013 |
Buoyancy assist tool with center diaphragm debris barrier |
Lonnie Carl Helms, Mayur Narain Ahuja, Ishwar Dilip Patil, Byong Jun Kim, Rajesh Parameshwaraiah |
2021-04-27 |