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LAIWU IRON&STEEL GROUP CO LTD

Overview
  • Total Patents
    726
  • GoodIP Patent Rank
    6,829
About

LAIWU IRON&STEEL GROUP CO LTD has a total of 726 patent applications. Its first patent ever was published in 2001. It filed its patents most often in China. Its main competitors in its focus markets environmental technology, machine tools and materials and metallurgy are HIGH FREQUENCY HEATTREAT, YOTSUKAICHI GOSEI KK and OAO NIZHNETAGIL SKIJ METALL KO.

Patent filings in countries

World map showing LAIWU IRON&STEEL GROUP CO LTDs patent filings in countries
# Country Total Patents
#1 China 726

Patent filings per year

Chart showing LAIWU IRON&STEEL GROUP CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhang Ge 31
#2 Li Xuetao 30
#3 Zhou Ping 29
#4 Zeng Hui 27
#5 Xu Rongchang 27
#6 Wang Bo 25
#7 Wu Guangjun 24
#8 Zhai Zhenglong 24
#9 Zhang Guanfeng 22
#10 Liang Dong 21

Latest patents

Publication Filing date Title
CN105312516A Mould core model assembly for manufacturing cast iron steel ingot mould and manufacturing method
CN105305337A Cable bridge stand
CN105313074A Mounting and dismounting tool of compressor piston
CN105345186A Device and method for removing broken screw tap
CN105269241A Hydraulic cylinder repairing method and hydraulic cylinder
CN105239007A Nickel-free high-tenacity weather-resistant steel plate and manufacturing method thereof
CN105351720A Thin oil returning pool and detection method for pollution of filter elements of pool
CN105251775A High-speed roller bed base and method for replacing and regulating roller bed of base
CN105344420A Sintering machine and single-roll grid plate replacement assisting device thereof
CN105256098A Method for replacing movable smoke hood of revolving furnace
CN105327992A Device for manufacturing structural component with circular arc-shaped edge
CN105256105A RH vacuum refining explosion preventing device and control method thereof
CN105234881A Nut dismounting tool
CN105345612A Automatic grinding device of cylinder barrel of hydraulic cylinder
CN105241342A Connection hole position determination device of roller bed base
CN105234896A Nut disassembly and assembly device
CN105290120A Automatic control method, device and system for rolling mill roller gaps
CN105293333A Wire rope connection device and method for replacing crane wire rope
CN105127927A Clamping and fixing device
CN105195854A Assistant tool for fast cutting of steel plate