Issued Patents 2023
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11851971 | System and method for hanger and packoff lock ring actuation | Prashant Patel, Xichang Zhang | 2023-12-26 |
| 11851972 | Bi-directional wellhead annulus packoff with integral seal and hanger lockdown ring | Xichang Zhang, Prashant Patel | 2023-12-26 |
| 11649689 | Sequential retrieval mechanism for bi-directional wellhead annulus packoff | Prashant Patel, Xichang Zhang | 2023-05-16 |