Learn more

ZHENGZHOU ENG CO LTD OF CHINA RAILWAY SEVENTH GROUP

Overview
  • Total Patents
    21
  • GoodIP Patent Rank
    79,979
About

ZHENGZHOU ENG CO LTD OF CHINA RAILWAY SEVENTH GROUP has a total of 21 patent applications. Its first patent ever was published in 2018. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, environmental technology and packaging and shipping are ZHEJIANG COMM CONSTR GROUP CO LTD, CHINA RAILWAY NO 3 CONSTRUCTION AND INSTALLATION ENG CO LTD and GEOTECHNICAL TECH CO LTD.

Patent filings in countries

World map showing ZHENGZHOU ENG CO LTD OF CHINA RAILWAY SEVENTH GROUPs patent filings in countries
# Country Total Patents
#1 China 21

Patent filings per year

Chart showing ZHENGZHOU ENG CO LTD OF CHINA RAILWAY SEVENTH GROUPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Jilong 16
#2 Zhang Fan 13
#3 Wei Kuifei 6
#4 Wang Zhifang 4
#5 Liu Jianwen 4
#6 Li Zheng 3
#7 Zhang Yanke 3
#8 Li Yadong 3
#9 Li Shimao 3
#10 Yin Aiguo 3

Latest patents

Publication Filing date Title
CN112031237A Cast-in-place concrete hollow floor slab embedded type core mold anti-floating fixing device
CN111441199A Rapid construction device and method for turnout during reconstruction of existing station
CN111335332A Long spiral drilling pressure-grouting pile construction pile casing and construction process
CN111456012A Control method for crack of ultra-long large-volume concrete member
CN111335557A Puncture-resistant planting roof and construction method thereof
CN111321851A Roof waterproof structure
CN111285582A Novel slurry treatment device and method for slurry retaining wall drilled pile
CN111268571A Cableway with hoisting function
CN111305074A Construction method for integrally dropping jacking box bridge with upward floating exceeding standard
CN111255236A Integral moving method for cast-in-situ beam full-space support
CN111188288A Construction method for replacing key points of business line of high-speed railway
CN111395318A Supporting pile construction process
CN110918825A Special processing equipment for long and large bent reinforcing steel bars of frame box bridge
CN110965486A Method for constructing frame culvert in existing railway hard overhead
CN110820608A Existing railway passenger station-entering overbridge dismantling method
CN111041911A Method for testing resistance of steel bar of railway ballastless track bed
CN110130414A A method of detection diaphram wall quality of wall
CN109914378A A kind of deeply mixing cement-soil pile distributed monitoring method of foundation pit enclosure structure
CN109629451A Across the multiply closed hanging basket cantilever method construction of road electric railway continuous bridge
CN108396753A Recoverable version side slope provisional protection structure and its construction method