Learn more

HUAHAI ENG CO LTD CREC SHANGHAI

Overview
  • Total Patents
    12
  • GoodIP Patent Rank
    143,839
  • Filing trend
    ⇩ 50.0%
About

HUAHAI ENG CO LTD CREC SHANGHAI has a total of 12 patent applications. It decreased the IP activity by 50.0%. 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 and measurement are YOOGU E&C, FRANKIGNOUL PIEUX ARMES and SINOHYDRO ENGINEERING BUREAU 4 CO LTD.

Patent filings in countries

World map showing HUAHAI ENG CO LTD CREC SHANGHAIs patent filings in countries
# Country Total Patents
#1 China 12

Patent filings per year

Chart showing HUAHAI ENG CO LTD CREC SHANGHAIs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Qian Kun 9
#2 Liu Xisheng 3
#3 Xu Mingfa 3
#4 Wang Liwei 2
#5 Xu Xianda 2
#6 Bai Xiangchen 2
#7 Wang Xusen 2
#8 Mu Baogang 2
#9 Han Feng 2
#10 Fan Baoming 2

Latest patents

Publication Filing date Title
CN111622785A Automatic overflow device for confined water at tunnel bottom and installation method thereof
CN111424681A Waterproof joint structure under sectional application condition of underground continuous wall and cast-in-place pile and construction method thereof
CN111424727A Structure for reducing influence of foundation pit construction on adjacent pile foundation and construction method
CN111155760A Engineering template
CN110554238A Stray current prevention testing method for subway integral ballast bed construction
CN110259483A The adjustable interim inverted arch steelframe installation structure of one kind and construction method
CN110528575A Subway solid concrete roabed concrete reserved opening device and its construction method
CN108265702A Diaphram wall cage top reinforcing bar protects structure and construction method
CN107663814A One kind be used for underground cable lay a railway track construct service channel at transition apparatus and its construction method
CN107401126A A kind of new railway roadbed once-pouring of concrete ditch template and its construction method
CN105926382A Metro depot common monolithic track bed reserved groove rail construction method
CN105544406A Sliding-type Bailey beam dismantling device and dismantling method thereof