Issued Patents 2016
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9464486 | Rolling cutter with bottom support | Youhe Zhang, Yuri Burhan, Jibin Shi | 2016-10-11 |
| 9464490 | Gage cutter protection for drilling bits | Youhe Zhang, Michael G. Azar, Yuri Burhan | 2016-10-11 |
| 9328564 | Cutting elements retained within sleeves | Youhe Zhang, Jibin Shi, Yuri Burhan | 2016-05-03 |