Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11105166 | Buoyancy assist tool with floating piston | Min Mark Yuan, Lonnie Carl Helms, Mayur Narain Ahuja, Ishwar Dilip Patil | 2021-08-31 |
| 10995583 | Buoyancy assist tool with debris barrier | Lonnie Carl Helms, Min Mark Yuan, Mayur Narain Ahuja, Ishwar Dilip Patil | 2021-05-04 |
| 10989013 | Buoyancy assist tool with center diaphragm debris barrier | Lonnie Carl Helms, Min Mark Yuan, Mayur Narain Ahuja, Ishwar Dilip Patil, Byong Jun Kim | 2021-04-27 |