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NO 5 ENGINEERING CORPORATION LTD OF CR20G

Overview
  • Total Patents
    21
  • GoodIP Patent Rank
    78,135
  • Filing trend
    ⇩ 33.0%
About

NO 5 ENGINEERING CORPORATION LTD OF CR20G has a total of 21 patent applications. It decreased the IP activity by 33.0%. 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 materials and metallurgy are CHINA RAILWAY FIRST GROUP CO, PETER PETERS and BEAUTHIER JEAN MARIE.

Patent filings in countries

World map showing NO 5 ENGINEERING CORPORATION LTD OF CR20Gs patent filings in countries
# Country Total Patents
#1 China 21

Patent filings per year

Chart showing NO 5 ENGINEERING CORPORATION LTD OF CR20Gs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Chaocheng 7
#2 Wu Jianguo 7
#3 Wei Hui 7
#4 Jia Wurong 4
#5 Zhang Yunfei 4
#6 Wang Yingsen 4
#7 Wang Fuwu 4
#8 Zhu Quanquan 4
#9 Lyu Yan 4
#10 Chen Chen 4

Latest patents

Publication Filing date Title
CN111980718A Tunneling method for small-radius turning and downward penetrating of building of shield tunneling machine
CN111734444A Construction method of shield segment grouting reinforcement structure close to existing line
CN111648791A Excavation supporting structure and construction method of tunnel
CN111626623A Method for controlling cutter changing of shield machine hob in composite stratum
CN111608690A Triple-pipe high-pressure jet grouting pile construction method suitable for water-rich sand layer
CN111456087A Basement structure regional small-section earthwork excavation method
CN111335672A Diamond wire saw cutting construction method
CN110952454A Automatic guniting equipment for tunnel and bridge construction
CN110500104A A kind of shield machine crosses the propulsion method of shallow-depth-excavation tunnel
CN110528846A A kind of scaffold for railway tunnel maintenance
CN110295539A A kind of high thin-wall reinforced concrete structure and construction method of overturn-preventing
CN110374624A A kind of connection channel construction method constructed by tunneling shield
CN110331627A A method of for locked III plate of non-fragment orbit quick-replaceable CRTS of high-speed railway
CN110206290A Wine library overhanging scaffold construction method
CN109881900A One kind is for concrete perfusion winter construction lagging facility in steel tube arch rib
CN109797667A A kind of multi-functional culvert and its method for prefabricating, construction method
CN109668487A Micro-vibration rock and soil blasting controls construction method
CN108446255A Gummy formation sediment improvement foaming agent additive amount determines method
CN107460795A Existing railway station changes track switch whole group in enclosed point and changes construction technology
CN107059649A A kind of supporting bridge pinner concrete curing cover and its maintenance process