Issued Patents All Time
| 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 |
| 10648049 | Heat treated heavy weight drill pipe | Wenhui Jiang, Fengxiao Liu, Alan W. Lockstedt | 2020-05-12 |
| 10160033 | 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 | 2018-12-25 |