Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11499395 | Flapper disk for buoyancy assisted casing equipment | Rajesh Parameshwaraiah, Lonnie Carl Helms, Min Mark Yuan | 2022-11-15 |
| 11293253 | Dual sub-surface release plug with bypass for small diameter liners | Lonnie Carl Helms, Tor Sigve Saetre, Frank Vinicia Acosta, Thomas Zachary Vonk, Rajesh Parameshwaraiah | 2022-04-05 |
| 11274519 | Reverse cementing tool | Lonnie Carl Helms, Jinhua Cao | 2022-03-15 |
| 11242720 | Threadless float equipment and method | Min Mark Yuan, Stephen Yeldell, Frank Acosta, Rajesh Parameshwaraiah | 2022-02-08 |