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CHANGZHOU RUITAI ENG MACH CO

Overview
  • Total Patents
    58
  • GoodIP Patent Rank
    88,598
About

CHANGZHOU RUITAI ENG MACH CO has a total of 58 patent applications. Its first patent ever was published in 2008. It filed its patents most often in China and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets mechanical elements, machine tools and civil engineering are OHASHI TEKKO KK, KOKI TECHNIK TRANSMISSION SYST and NANTONG ZHENKANG WELDING ELECTROMACHINERY CO LTD.

Patent filings in countries

World map showing CHANGZHOU RUITAI ENG MACH COs patent filings in countries

Patent filings per year

Chart showing CHANGZHOU RUITAI ENG MACH COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Huang Tengfei 15
#2 Liu Xiaolei 15
#3 Li Xueyun 14
#4 Huang Siji 13
#5 Hu Gaohua 12
#6 Li Xianyuan 9
#7 Weng Minhong 8
#8 Wang Shuhai 8
#9 Yang Junjie 8
#10 Chen Yadong 8

Latest patents

Publication Filing date Title
CN105134922A Self-lubrication sealing structure for gear box
CN104963250A Sleeper recycling device and sleeper recycling method
CN104963249A Rabble blade for excavating railway ballast
CN104494366A Drive axle gearbox wheel set for large railway maintenance machinery
CN104633061A Gear case body for tramcar
CN104500700A Streetcar gear transmission device
CN104406865A Easy-to-disassemble drop hammer testing machine and use method thereof
CN104235303A Operating gearbox
CN104315127A Gearbox ventilating device and application method thereof
CN104192159A Axle gearbox suspending hanger
CN104191967A Transfer case suspension device
CN104179092A Machine for removing, transporting and laying turnout steel rail component
CN104192151A Automatic electric rail vehicle
WO2015010630A1 Overlap removing oil cylinder, and flash butt welder having asymmetric-cross-section trough-type rail and using same
CN104075054A Hydraulic insulating joint
CN103910283A Compact-type gear drive box
CN103912673A Gear shifting locking mechanism
CN103628368A Meter gage stabilizing device
CN103495800A Steel rail induction butt welding and heat treatment device
CN103521908A Induction welding device and method for sectional materials