Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10961784 | Rotating cutter single cone bit | Lian Chen, Zongliang Xie, Haitao Ren, Liyuan Yang | 2021-03-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10961784 | Rotating cutter single cone bit | Lian Chen, Zongliang Xie, Haitao Ren, Liyuan Yang | 2021-03-30 |