Inventor
FANG HAIJIANG
CN16 patents
Patents
16 patentsUSD997219SAug 29, 2023
Polycrystalline diamond compact with a double-layer structure
SF DIAMOND CO LTD7 citations85
USD989826SJun 20, 2023
Drill bit
SF DIAMOND CO LTD8 citations85
USD989827SJun 20, 2023
Drill bit
SF DIAMOND CO LTD8 citations85
USD982631SApr 4, 2023
Drill bit
SF DIAMOND CO LTD10 citations85
USD982632SApr 4, 2023
Drill bit
SF DIAMOND CO LTD7 citations85
USD982046SMar 28, 2023
Drill bit
SF DIAMOND CO LTD7 citations85
US11377910B2Jul 5, 2022
Polycrystalline diamond compact
SF DIAMOND CO LTD9 citations79
USD1026981SMay 14, 2024
Polycrystalline diamond compact with a tripartite raised surface
SF DIAMOND CO LTD3 citations74
USD1026980SMay 14, 2024
Polycrystalline diamond compact with a raised surface and groove therein
SF DIAMOND CO LTD3 citations74
USD1006074SNov 28, 2023
Polycrystalline diamond compact with a raised triangular structure
SF DIAMOND CO LTD4 citations74
USD1006073SNov 28, 2023
Polycrystalline diamond compact with a raised surface sloping to a peripheral extension
SF DIAMOND CO LTD4 citations74
US11873684B2Jan 16, 2024
Polycrystalline diamond compact
SF DIAMOND CO LTD5 citations69
USD1068884SApr 1, 2025
Polycrystalline diamond compact with a raised parallelogram surface and a groove formed therein
SF DIAMOND CO LTD0 citations62
USD1057779SJan 14, 2025
Polycrystalline diamond compact with a raised surface and groove therein
SF DIAMOND CO LTD0 citations62
USD1057780SJan 14, 2025
Polycrystalline diamond compact with a tripartite raised surface
SF DIAMOND CO LTD0 citations62
US10865152B2Dec 15, 2020
Polycrystalline diamond compact
SF DIAMOND CO LTD0 citations34