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CENTRAL IRON & STEEL RES INST

Overview
  • Total Patents
    914
  • GoodIP Patent Rank
    2,623
  • Filing trend
    ⇩ 12.0%
About

CENTRAL IRON & STEEL RES INST has a total of 914 patent applications. It decreased the IP activity by 12.0%. Its first patent ever was published in 1992. It filed its patents most often in China, United States and EPO (European Patent Office). Its main competitors in its focus markets materials and metallurgy, environmental technology and machine tools are DALIPAL PIPE CO, SHOUGANG GROUP CO LTD and NANJING IRON & STEEL CO LTD.

Patent filings per year

Chart showing CENTRAL IRON & STEEL RES INSTs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Wei 67
#2 Liu Zhengdong 55
#3 Yang Gang 53
#4 Bao Hansheng 52
#5 Zhu Minggang 50
#6 Yang Libin 42
#7 Chai Feng 42
#8 Qi Yuanhong 40
#9 Yang Caifu 40
#10 Li Zhaodong 40

Latest patents

Publication Filing date Title
CN112285143A Method for evaluating inclusion of high-cleanliness gear steel
CN112281068A Preparation method of valve alloy equiaxial crystal grains
CN112159933A Ultrahigh-strength corrosion-resistant steel bar and manufacturing method thereof
CN112111696A High-carbon bearing steel with high isotropy and long contact fatigue life and manufacturing method thereof
CN111996429A La-Y-Mg-Ni quaternary hydrogen storage alloy with high hydrogen absorption and desorption rate and preparation method thereof
CN112111625A RH vacuum powder injection refining device and powder injection method thereof
CN112212700A Circular seam type gas supply element and gas supply method
CN112267029A Smelting method for controlling element burning loss of nickel-based alloy electroslag ingot of high-aluminum titanium
CN112050768A Automatic slag layer thickness measuring device and method
CN112063795A Slag layer thickness measuring device and method
CN112051172A Multifunctional rolling friction wear testing machine
CN112048651A High-performance high-capacity hydrogen storage alloy for fuel cell and preparation method thereof
CN111926259A Low alloy steel for high heat input welding and preparation method thereof
CN112071544A Low-density Y-containing permanent magnet and preparation method thereof
CN112045331A Welding material for high-toughness, corrosion-resistant and fire-resistant low-alloy high-strength steel
CN112051528A Magnetostrictive material performance testing device and method
CN111961919A Nickel-copper alloy bar for ship and processing method thereof
CN111926142A Process method for recycling refined waste residues as converter slagging agent
CN111893228A P in phosphorus-containing steel slag is improved2O5Method for improving citric acid solubility
CN111892014A Getter film and preparation method thereof