Weifeng Du
20Patents
6h-index
9Co-inventors
54Inventor score
Filing activity: Jul 19, 2019 → May 10, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US11377910B2 | Polycrystalline diamond compact | Chemistry; Metallurgy | 9 | Active |
| USD997219S1 | Polycrystalline diamond compact with a double-layer structure | General | 7 | Active |
| USD989826S1 | Drill bit | General | 7 | Active |
| USD989827S1 | Drill bit | General | 7 | Active |
| USD982632S1 | Drill bit | General | 6 | Active |
| USD982631S1 | Drill bit | General | 6 | Active |
| USD982046S1 | Drill bit | General | 6 | Active |
| USD1006073S1 | Polycrystalline diamond compact with a raised surface sloping to a peripheral extension | General | 4 | Active |
| USD1026980S1 | Polycrystalline diamond compact with a raised surface and groove therein | General | 3 | Active |
| USD1026981S1 | Polycrystalline diamond compact with a tripartite raised surface | General | 3 | Active |
| USD1006074S1 | Polycrystalline diamond compact with a raised triangular structure | General | 3 | Active |
| US11873684B2 | Polycrystalline diamond compact | Fixed Constructions | 2 | Active |
| USD996483S1 | Polycrystalline diamond compact with a raised triangular structure | General | 0 | Revoked |
| USD1057780S1 | Polycrystalline diamond compact with a tripartite raised surface | General | 0 | Active |
| USD1057779S1 | Polycrystalline diamond compact with a raised surface and groove therein | General | 0 | Active |
| USD1068884S1 | Polycrystalline diamond compact with a raised parallelogram surface and a groove formed therein | General | 0 | Active |
| US12103853B2 | Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom | Chemistry; Metallurgy | 0 | Active |
| USD996482S1 | Polycrystalline diamond compact with a raised surface sloping to a peripheral extension | General | 0 | Revoked |
| US11772977B2 | Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom | Chemistry; Metallurgy | 0 | Active |
| US12168608B2 | Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.