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SF DIAMOND CO LTD

Overview
  • Total Patents
    13
  • GoodIP Patent Rank
    139,566
  • Filing trend
    ⇩ 100.0%
About

SF DIAMOND CO LTD has a total of 13 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2010. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and China. Its main competitors in its focus markets materials and metallurgy, civil engineering and machine tools are ULTERRA DRILLING TECHNOLOGIES L P, SANDVIK MINING AND CONSTRUCTION TOOLS AB and NL PETROLEUM PROD.

Patent filings in countries

World map showing SF DIAMOND CO LTDs patent filings in countries
# Country Total Patents
#1 United States 7
#2 WIPO (World Intellectual Property Organization) 5
#3 China 1

Patent filings per year

Chart showing SF DIAMOND CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhao Dongpeng 12
#2 Fang Haijiang 11
#3 Niu Tongjian 9
#4 Du Weifeng 7
#5 Ma Shanshan 7
#6 Li Hongli 3
#7 Zhang Chunlin 2
#8 Yang Saifei 2
#9 Wen Tengfei 2
#10 Wang Caili 2

Latest patents

Publication Filing date Title
US2020087758A1 Method for making polycrystalline diamond compacts having curved surface
WO2019075917A1 Multi-functional non-planar polycrystalline diamond composite for oil and gas drilling
WO2019095511A1 High impact resistant non-planar polycrystalline diamond composite piece for drilling complex hard rock formation
US2018318962A1 Method for processing polycrystalline diamond compact having curved surface
WO2018205497A1 Cobalt-removed polycrystalline diamond compact
CN101788436A Method for measuring abrasion ratio of polycrystalline diamond compact