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THE NO 3 ENG CO LTD OF CHINA RAILWAY 22TH BUREAU GROUP

Overview
  • Total Patents
    13
  • GoodIP Patent Rank
    132,080
  • Filing trend
    ⇧ 300.0%
About

THE NO 3 ENG CO LTD OF CHINA RAILWAY 22TH BUREAU GROUP has a total of 13 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, mechanical elements and measurement are CCCC FOURTH HARBOR ENG CO LTD, NANJING LIANTONG CONSTRUCTION ENG TECH CO LTD and EJ USA INC.

Patent filings in countries

World map showing THE NO 3 ENG CO LTD OF CHINA RAILWAY 22TH BUREAU GROUPs patent filings in countries
# Country Total Patents
#1 China 13

Patent filings per year

Chart showing THE NO 3 ENG CO LTD OF CHINA RAILWAY 22TH BUREAU GROUPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liu Side 7
#2 Wang Hong 5
#3 Zheng Yiming 5
#4 Gao Yong 4
#5 Meng Xianglong 4
#6 Wang Xinrong 4
#7 Zou Desong 4
#8 Li Zhechao 3
#9 Wen Chunrong 3
#10 Zhang Shizhang 2

Latest patents

Publication Filing date Title
CN112126418A Thixotropic slurry prepared from seawater and preparation method thereof
CN112033813A Comprehensive pipe gallery cable support bearing capacity test method
CN111794104A Support-free assembly construction method for assembly type bent cap construction
CN111549794A Miniature supporting method and miniature pile supporting structure suitable for soft foundation treatment
CN111549768A Method for quickly and accurately controlling pile head height
CN111609213A Construction method for quickly installing pipeline in pipe gallery
CN110260042A A kind of guide rail of relaying well replacement push-bench quick-assembling push-bench head
CN109488328A A kind of multiple noise reduction composite structure in railway tunnel outlet
CN109972656A A kind of overlapping fabricated construction pipe gallery and its construction method
CN109972655A A kind of prefabricated piping lane machinery and Combined hydraulic type, which are integrally pacified, tears steel form and installation method open
CN109972645A Assist the assembled interim retaining wall of the steel of pile foundation concrete dado construction and construction method
CN107471414A A kind of construction method of draw type steel internal mould and pre-cast hollow slab
CN106088596A A kind of without pull bar H profile steel truss U-type groove side template strengthening system