Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11389858 | Cold rolling devices and cold rolled rotary shouldered connection threads | Rakesh Singh, Ke Ken Li, Michael Hui Du, Fei Song, Stephen Ray Stafford +2 more | 2022-07-19 |
| 11391098 | Double-shouldered connection for drilling tubulars with large inside diameter | — | 2022-07-19 |