Learn more

CHINA RAILWAY ERJU 4TH ENG CO LTD

Overview
  • Total Patents
    15
  • GoodIP Patent Rank
    109,240
  • Filing trend
    ⇧ 300.0%
About

CHINA RAILWAY ERJU 4TH ENG CO LTD has a total of 15 patent applications. It increased the IP activity by 300.0%. Its first patent ever was published in 2016. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, computer technology and materials and metallurgy are SHA HUANHUAN, SKINEARTH CO LTD and CCCC SHANGHAI HARBOUR ENG DESIGN & RES INST CO LTD.

Patent filings in countries

World map showing CHINA RAILWAY ERJU 4TH ENG CO LTDs patent filings in countries
# Country Total Patents
#1 China 15

Patent filings per year

Chart showing CHINA RAILWAY ERJU 4TH ENG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Xueyou 3
#2 Tan Xiangguo 2
#3 Yang Bo 2
#4 Lyu Guanghui 2
#5 Li Yi 2
#6 Guo Chuang 2
#7 Yi Dawei 2
#8 Huang Mubing 2
#9 Tang Chao 2
#10 Liu Sheng 1

Latest patents

Publication Filing date Title
CN112252353A Cylindrical support node and construction method thereof
CN110156210A A kind of processing method of Urban Underground construction yellow mud water
CN109866738A A kind of grating type steam turbine
CN109854282A Automatic compacting device and tunnel waterproof board spreading machine people
CN109614666A A method of based on the arrangement and method for construction of BIM technology than choosing
CN108978732A One kind closing on the existing bridge bearing platform protection construction of open-cut foundation ditch and method
CN108978695A Existing bridge foundation pit water stop structure and method are worn under one kind
CN108978729A A kind of subway station hole for hoist method for blocking
CN108825306A A kind of temperature monitoring device and monitoring method in High-geotemperature tunnel
CN108301265A A kind of low support rail beam for setting circuit of middle low speed magnetic suspension and its construction method
CN108252165A A kind of middle low speed magnetic suspension is low to put circuit road structure and its construction method
CN108218359A A kind of cement base high-performance microdilatancy filling and injecting slurry material
CN107859529A The cleaner and method of a kind of bored tunnel
CN107620259A Construction protection method for bridge under a kind of high-voltage line
CN107143351A A kind of self-propelled tunnel overlength inverted arch moving die plate steel box-girder trestle