Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11199071 | Full bore buoyancy assisted casing system | Lonnie Carl Helms, Kevin Wendell Ardoin, Stephen Yeldell, Julio Alberto Cornejo, Saul Emmanuel Vazquez Niebla +1 more | 2021-12-14 |
| 11142994 | Buoyancy assist tool with annular cavity and piston | Min Mark Yuan, Lonnie Carl Helms, Mayur Narain Ahuja, Ishwar Dilip Patil, Clayton Reed Bonn | 2021-10-12 |
| 11118423 | Downhole tool for use in a borehole | Lonnie Carl Helms | 2021-09-14 |