WD

Weifeng Du

SC Sf Diamond Co.: 18 patents #1 of 12Top 9%
Overall (All Time): #243,575 of 4,157,543Top 6%
18
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
D1068884 Polycrystalline diamond compact with a raised parallelogram surface and a groove formed therein Haijiang Fang, Yongfeng Wang, Jian Yang 2025-04-01
D1057780 Polycrystalline diamond compact with a tripartite raised surface Haijiang Fang, Yongfeng Wang, Jian Yang 2025-01-14
D1057779 Polycrystalline diamond compact with a raised surface and groove therein Haijiang Fang, Yongfeng Wang, Jian Yang 2025-01-14
12168608 Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom Haijang Fang, Yongfeng Wang, Dongpeng Zhao 2024-12-17
12103853 Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom Haijang Fang, Yongfeng Wang, Dongpeng Zhao 2024-10-01
D1026981 Polycrystalline diamond compact with a tripartite raised surface Haijiang Fang, Yongfeng Wang, Jian Yang 2024-05-14
D1026980 Polycrystalline diamond compact with a raised surface and groove therein Haijiang Fang, Yongfeng Wang, Jian Yang 2024-05-14
11873684 Polycrystalline diamond compact Dongpeng Zhao, Tongjian NIU, Tengfei WEN, Chunlin Zhang, Haijiang Fang 2024-01-16
D1006073 Polycrystalline diamond compact with a raised surface sloping to a peripheral extension Haijiang Fang, Yongfeng Wang, Jian Yang 2023-11-28
D1006074 Polycrystalline diamond compact with a raised triangular structure Haijiang Fang, Yongfeng Wang, Jian Yang 2023-11-28
11772977 Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom Haijang Fang, Yongfeng Wang, Dongpeng Zhao 2023-10-03
D997219 Polycrystalline diamond compact with a double-layer structure Haijiang Fang, Yongfeng Wang, Jian Yang 2023-08-29
D989826 Drill bit Haijiang Fang, Yongfeng Wang 2023-06-20
D989827 Drill bit Haijiang Fang, Yongfeng Wang 2023-06-20
D982632 Drill bit Haijiang Fang, Yongfeng Wang 2023-04-04
D982631 Drill bit Haijiang Fang, Yongfeng Wang 2023-04-04
D982046 Drill bit Haijiang Fang, Yongfeng Wang 2023-03-28
11377910 Polycrystalline diamond compact Dongpeng Zhao, Shanshan Ma, Tongjian NIU, Haijiang Fang 2022-07-05