| 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 |
| 11293261 |
Buoyancy assist tool |
Stephen Yeldell, Lonnie Carl Helms, Frank Acosta, Rajesh Parameshwaraiah, Kevin Wendell Ardoin |
2022-04-05 |
| 11293260 |
Buoyancy assist tool |
Avinash Gopal Dharne, Stephen Yeldell, Frank Acosta, 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 |