Issued Patents 2025
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1068884 | Polycrystalline diamond compact with a raised parallelogram surface and a groove formed therein | Weifeng Du, Yongfeng Wang, Jian Yang | 2025-04-01 |
| D1057779 | Polycrystalline diamond compact with a raised surface and groove therein | Weifeng Du, Yongfeng Wang, Jian Yang | 2025-01-14 |
| D1057780 | Polycrystalline diamond compact with a tripartite raised surface | Weifeng Du, Yongfeng Wang, Jian Yang | 2025-01-14 |