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BEIJING NO 4 MUNICIPAL CONSTR ENG CO LTD

Overview
  • Total Patents
    46
  • GoodIP Patent Rank
    32,706
  • Filing trend
    ⇧ 12.0%
About

BEIJING NO 4 MUNICIPAL CONSTR ENG CO LTD has a total of 46 patent applications. It increased the IP activity by 12.0%. 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, environmental technology and chemical engineering are LOCHER & CIE AG, CCCC RAILWAY CONSULTANTS GROUP CO LTD and CHINA RAIWAY ERYUAN GUIYANG SURVEY AND DESIGN INST CO LTD.

Patent filings in countries

World map showing BEIJING NO 4 MUNICIPAL CONSTR ENG CO LTDs patent filings in countries
# Country Total Patents
#1 China 46

Patent filings per year

Chart showing BEIJING NO 4 MUNICIPAL CONSTR ENG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Shi Leilei 16
#2 Peng Mingyu 14
#3 Zheng Zidi 14
#4 Zhou Zheng 10
#5 Li Xue 10
#6 Ma Xiaochun 10
#7 Geng Fulin 9
#8 Zhang Haiying 9
#9 Zhang Zhongyu 8
#10 Dai Jianwei 8

Latest patents

Publication Filing date Title
CN112109763A Rail-off recovery device and method
CN111804165A Liquid mixing pipeline and liquid mixing gun
CN111438172A In-situ remediation device and method for volatile organic contaminated soil
CN111530903A Injection well system for in-situ oxidation remediation of soil
CN111423069A Groundwater pumping treatment recharge system and groundwater treatment method
CN111392915A Multiphase treatment system for polluted land
CN111392988A Underground water treatment system and underground water treatment method
CN111521522A Method and system for monitoring diffusion of oxidant in underground water
CN110714621A Millimeter-scale accurate positioning system and method in prefabricated stand column hoisting process
CN110565548A method for monitoring supporting and reinforcing construction of inclined leg rigid frame bridge
CN110565547A Inclined leg steel bridge supporting and jacking reinforcing device and method
CN110567431A Underwater soil body settlement monitoring system and method
CN110500106A A kind of shield launching reaction frame component
CN110513118A A kind of shield originates structure without negative ring and originates technique
CN110566216A steel ring structure for shield launching
CN110616639A Capping beam fine adjustment system applying prefabricated capping beam construction and adjustment method thereof
CN110566223A deep-buried PBA subway station section design method
CN110565650A multi-row ultra-deep oblique composite anchor rod pile for narrow space
CN110578331A novel equipment is used in construction of compound stock stake of super dark slant
CN110578534A novel template trolley for underground excavation of subway interval standard section tunnel