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SHANGHAI YUANFENG UNDERGROUND ENGINEERING TECH CO LTD

Overview
  • Total Patents
    14
  • GoodIP Patent Rank
    124,033
About

SHANGHAI YUANFENG UNDERGROUND ENGINEERING TECH CO LTD has a total of 14 patent applications. Its first patent ever was published in 2019. It filed its patents most often in China. Its main competitors in its focus markets civil engineering and engines, pumps and turbines are SHANGHAI CHENGDI CONSTRUCTION CORP LTD, JOHANN KELLER FA and TIANJIN JIANYAN ROCK AND SOIL ENG CO LTD.

Patent filings in countries

World map showing SHANGHAI YUANFENG UNDERGROUND ENGINEERING TECH CO LTDs patent filings in countries
# Country Total Patents
#1 China 14

Patent filings per year

Chart showing SHANGHAI YUANFENG UNDERGROUND ENGINEERING TECH CO LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Zhou Zhen 12
#2 Zhang Li 9
#3 Ye Huaiwen 7
#4 Lan Wei 6
#5 Jiang Yuansheng 4
#6 Xu Yuan 4
#7 Yao Liguo 4
#8 Zhou Chuanzhen 3
#9 Wu Jiangbin 2
#10 Zhang Zhen 2

Latest patents

Publication Filing date Title
CN112267485A Novel well point dewatering device
CN112281884A Well point dewatering device and operation method thereof
CN112281883A Precipitation system and operation method thereof
CN112252347A Deep well dewatering device and operation method thereof
CN111962540A Automatic drainage box
CN111963242A Dewatering well water collecting and draining device and control method thereof
CN111962595A Groove grooving equipment
CN111980093A Groove grooving equipment
CN111962539A Separate type water filter pipe of dewatering well
CN111188333A Gas-slurry combined four-shaft mixing pile construction equipment and construction method
CN111021348A Construction method and construction device for improving uniformity of cement-soil mixing pile
CN110761279A Construction method and construction device for air-hardening cement mixing pile
CN110761278A Construction method and construction equipment for dry and wet medium switching mixing pile
CN110747849A Construction method and construction equipment for stirring pile with automatically controlled slurry and powder variables