Issued Patents 2023
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1006074 | Polycrystalline diamond compact with a raised triangular structure | Weifeng Du, Yongfeng Wang, Jian Yang | 2023-11-28 |
| D1006073 | Polycrystalline diamond compact with a raised surface sloping to a peripheral extension | Weifeng Du, Yongfeng Wang, Jian Yang | 2023-11-28 |
| D997219 | Polycrystalline diamond compact with a double-layer structure | Weifeng Du, Yongfeng Wang, Jian Yang | 2023-08-29 |
| D989827 | Drill bit | Yongfeng Wang, Weifeng Du | 2023-06-20 |
| D989826 | Drill bit | Yongfeng Wang, Weifeng Du | 2023-06-20 |
| D982632 | Drill bit | Yongfeng Wang, Weifeng Du | 2023-04-04 |
| D982631 | Drill bit | Yongfeng Wang, Weifeng Du | 2023-04-04 |
| D982046 | Drill bit | Yongfeng Wang, Weifeng Du | 2023-03-28 |