Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9739097 | Polycrystalline diamond compact cutters with conic shaped end | Youhe Zhang, Yuelin Shen, Yuri Burhan | 2017-08-22 |
| 9605486 | Rolling cutter with close loop retaining ring | Yuri Burhan, Chen Chen, Youhe Zhang | 2017-03-28 |