Learn more

CHINA RAILWAY HEAVY MACHINERY CO LTD

Overview
  • Total Patents
    30
  • GoodIP Patent Rank
    70,564
  • Filing trend
    0.0%
About

CHINA RAILWAY HEAVY MACHINERY CO LTD has a total of 30 patent applications. It increased the IP activity by 0.0%. Its first patent ever was published in 2012. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, transport and machine tools are VERSAFLEX INC, CHINA RAILWAY MAGLEV TRANSP INVESTMENT & CONSTRUCTION CO LTD and FCC CONSTRUCCION S A.

Patent filings in countries

World map showing CHINA RAILWAY HEAVY MACHINERY CO LTDs patent filings in countries
# Country Total Patents
#1 China 30

Patent filings per year

Chart showing CHINA RAILWAY HEAVY MACHINERY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhang Shangwei 26
#2 Dong Pinghua 24
#3 Zhang Xiongchao 23
#4 Liu Zhongling 22
#5 Sun Zhimin 21
#6 Hu Jin 21
#7 Sun Huaping 16
#8 Zhou Huihui 14
#9 Shu Weihao 13
#10 Wang Yanli 9

Latest patents

Publication Filing date Title
CN110774845A Tunnel tyre wheel-rail interchange type vehicle
CN110805580A Wheel set balanced stress method for multi-point support of wheel-rail walking
CN110789280A Conversion method for tire walking and rail walking of tunnel vehicle
CN110387827A The manufacturing method and transportation resources of big deck-molding steel box-girder
CN109680618A Steel box-girder entirety fall girder apparatus and its fall beam method
CN109333447A Pin removal suitable for large-scale fitting body and method of pulling pin
CN109355987A Groove-shape rail bending track device and method
CN109518604A One kind being used for deep camber steel box-girder push construction method
CN108425509A A kind of grid structure with bolt-sphere joints light-duty steel construction house replaces the construction method of rod piece and bolt sphere
CN107988861A Subway work complete set of equipments and method of laying a railway track
CN107988860A A kind of rubber-tyred subway change paving machine and its become across method
CN107964841A A kind of rubber-tyred subway changes paving machine and method for automatically leveling
CN107869112A A kind of traction system and method for larger radius of curvature bridge
CN106049208A High-speed railway turnout large-size component replacing and laying device and method
CN105603840A Safe rail sealing device and rail sealing method
CN104831636A Railway T-beam rescue trolley and rescue method
CN104929000A Sectional railway track laying machine set and assembling method thereof
CN104805741A Carrying reloading rack support and method for quickly moving carrying reloading rack by use of support
CN104727193A Segmented railway track laying set and transportation method thereof
CN104625649A Machining method for large-depth taper pin holes of track laying and bridge erecting equipment