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4TH ENG CO LTD CTCE GROUP

Overview
  • Total Patents
    41
  • GoodIP Patent Rank
    37,245
  • Filing trend
    ⇧ 50.0%
About

4TH ENG CO LTD CTCE GROUP has a total of 41 patent applications. It increased the IP activity by 50.0%. Its first patent ever was published in 2016. It filed its patents most often in China and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets civil engineering, measurement and machines are HARBIN RAILWAY CONSTRUCTION GROUP CO LTD OF CHINA RAILWAY 22ND CONSTRUCTION BUREAU CO LTD, CHINA RAILWAY NO 3 ENG GROUP and CCTE3 INFRASTRUCTURE CONSTRUCTION INVEST CO LTD.

Patent filings in countries

World map showing 4TH ENG CO LTD CTCE GROUPs patent filings in countries

Patent filings per year

Chart showing 4TH ENG CO LTD CTCE GROUPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Huang Jingxin 24
#2 Chen Ping 23
#3 An Gangjian 9
#4 Song Baoji 9
#5 Liu Wenbing 6
#6 Zhu Shanmei 6
#7 Cao Guangyong 6
#8 Xia Song 5
#9 Luo Bin 5
#10 Song Shenglin 5

Latest patents

Publication Filing date Title
CN112182728A BIM coordinate and engineering coordinate conversion method based on spatial analysis
CN112257159A BIM design-oriented bridge engineering line coordinate calculation method
CN112231815A Bridge engineering construction automatic measurement system and method based on BIM and measurement robot
CN111828032A Pipe jacking construction device
CN111456755A Small-curvature-radius tunnel shield starting steel box and construction method
CN111287771A Continuous grouting device for shield construction
CN111156011A Improved device for preventing shield steel sleeve from deforming
CN111022081A Long-distance water-rich sand layer pipe jacking intermediate and filling and sealing method thereof
CN110984163A Annular earth excavation method for four corners of subway transfer node pit-in-pit
CN110820558A Assembly type construction method of railway bridge floor member
CN110658457A Power supply control system of automatic leveling base
CN110666950A Prefabricated field structure of reinforced concrete component
CN110565810A Detachable connecting node between beam columns and connecting method
CN110644763A Pin-connected panel metal protection network
CN110398784A A kind of Tunnel Passing fault belt Assessment of Surrounding Rock Stability method
CN110186445A A kind of vertical adjustable Simple measurement device suitable for underground engineering horizontal control survey
CN110344428A A kind of construction method of pin dress formula prefabricated board substitution cushion cap brick mold
CN110104002A A kind of high-speed railway construction floor truck
CN110186439A A kind of special measurement method of tilting prisms
CN110106869A A kind of construction method of neighbouring Business Line crushed stone grouting pile