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CHINA RAILWAY ERJU 1ST ENG CO LTD

Overview
  • Total Patents
    64
  • GoodIP Patent Rank
    22,780
  • Filing trend
    ⇧ 466.0%
About

CHINA RAILWAY ERJU 1ST ENG CO LTD has a total of 64 patent applications. It increased the IP activity by 466.0%. Its first patent ever was published in 2017. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, computer technology and measurement are CCCC FIRST HIGHWAY XIAMEN ENG CO LTD, THE THIRD CONSTRUCTION CO LTD OF CTCE GROUP and FIXON E & C CO LTD.

Patent filings in countries

World map showing CHINA RAILWAY ERJU 1ST ENG CO LTDs patent filings in countries
# Country Total Patents
#1 China 64

Patent filings per year

Chart showing CHINA RAILWAY ERJU 1ST ENG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Xie Xianlong 19
#2 Yong Tingting 14
#3 Wang Guowei 14
#4 Liang Xuan 14
#5 Luo Yong 11
#6 Yuan Juxing 11
#7 Hu Guangquan 10
#8 Cui Yu 10
#9 Zhou Lei 10
#10 Cao Wen 10

Latest patents

Publication Filing date Title
CN112252195A Assembly type continuous beam prestressed steel strand whole-bundle tensioning operation trolley and use method thereof
CN112147038A Powder density measuring tool and using method
CN112160590A Square column formwork system with combined formwork matched with bending type adjustable reinforcing piece and construction method
CN112157793A Concrete test block maintenance interval isolation device and using method thereof
CN112198302A Rapid detection method and measuring tool for mud content of fine aggregate
CN112160314A Construction method and device for multiple combination mode diaphragm wall joint
CN112095485A Bridge stay cable anchor cylinder pre-embedded positioning device and using method thereof
CN112154729A Composite seed for vegetation restoration in alpine regions of Yunnan northwest plateau
CN112065310A Bridge hole pile sand-rich sediment pumping device and using method
CN111749142A 0# block assembled bracket design based on BIM and construction method thereof
CN112012196A Round pile reinforcement cage sleeve with high reinforcement ratio and construction method thereof
CN111794183A Shallow-buried underground tunnel top riverbed bottom reinforcing structure and method
CN111724477A Method for constructing multi-level three-dimensional terrain model through multi-source data fusion
CN111504264A Method for measuring equal height of two centering rods and verifying precision of centering rods
CN111502246A BIM technology-based design and optimization method for side wall unilateral template support system
CN111424976A Structure bottom plate axillary corner template and construction method
CN111650072A Device for rapidly measuring water content of sand and stone and using method thereof
CN111395152A Conversion structure and method for large-span special-shaped foundation pit alternate-changing roadway plate support stress system
CN111461534A Integrated plant community and area system investigation method suitable for ecological restoration of construction road section
CN111353725A Vegetation ecological restoration monitoring and evaluation method for railway green channel in alpine region of Yunnan northwest plateau and application