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HUNAN VALIN XIANGTAN IRON & STEEL CO LTD

Overview
  • Total Patents
    269
  • GoodIP Patent Rank
    7,773
  • Filing trend
    ⇧ 211.0%
About

HUNAN VALIN XIANGTAN IRON & STEEL CO LTD has a total of 269 patent applications. It increased the IP activity by 211.0%. Its first patent ever was published in 2009. It filed its patents most often in China. Its main competitors in its focus markets materials and metallurgy, environmental technology and machine tools are WUHAN IRON AND STEEL GROUP ECHENG IRON AND STEEL CO LTD, KIA SPECIAL STEEL CO LTD and BAOWU GROUP ECHENG IRON AND STEEL CO LTD.

Patent filings in countries

World map showing HUNAN VALIN XIANGTAN IRON & STEEL CO LTDs patent filings in countries
# Country Total Patents
#1 China 269

Patent filings per year

Chart showing HUNAN VALIN XIANGTAN IRON & STEEL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Luo Deng 70
#2 Yang Yunqing 55
#3 Zhang Yongwei 51
#4 Du Jiang 50
#5 Zhang Qingxue 45
#6 Yang Jun 39
#7 Jiang Lingfeng 39
#8 Li Yulu 36
#9 Tang Wei 36
#10 Peng Ningqi 33

Latest patents

Publication Filing date Title
CN112143848A Smelting method of low-silicon low-sulfur aluminum killed steel
CN112210723A Production method of atmospheric corrosion resistant steel
CN112251677A Production method of Cr-Mo series high-performance basin angle gear steel
CN112251661A Production method of low-carbon low-silicon cold heading steel
CN112226699A Production method of acid-resistant pipeline steel
CN112063935A Production method of steel for nuclear grade support and hanger of CAP (capacitor CAP) passive nuclear power plant
CN112126865A Rolling method of X80 pipeline steel plate
CN112080632A Sintering method of super-thick material layer sintering ore
CN112126862A Production method of steel for CAP passive nuclear power plant nuclear-grade mechanical module
CN112126861A Production method of high-strength and high-toughness steel for CAP nuclear power plant nuclear-grade mechanical module
CN112062354A Method for reducing hardness of dust removal water of converter flue gas
CN112094662A Coking and coal blending method
CN111906414A Large-gap multilayer stepping argon arc welding back cover repairing method for carbon steel pipeline and container
CN111906416A Blind area visible welding equipment and welding method thereof
CN111804752A Bar production line finishing area process route
CN111793750A Double-discharging material tracking system of roller hearth type heat treatment furnace
CN111850229A Maintenance method for charging side of converter lining
CN111908583A Method for treating wastewater by using steelmaking converter dust and mud as heterogeneous Fenton catalyst
CN111874500A Intelligent flaw detection sample rod transportation system
CN111922085A Production method of steel for improving rust and corrosion resistance of steel plate