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HUNAN PROVINCIAL COMMUNICATIONS PLANNING SURVEY AND DESIGN INST CO LTD

Overview
  • Total Patents
    36
  • GoodIP Patent Rank
    43,514
About

HUNAN PROVINCIAL COMMUNICATIONS PLANNING SURVEY AND DESIGN INST CO LTD has a total of 36 patent applications. Its first patent ever was published in 2018. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, environmental technology and computer technology are KUNMING SURVEY DESIGN AND RES INSTITUTE CO LTD OF CREEC, CCCC ROAD & BRIDGE SOUTH CHINA ENG CO LTD and 3RD ENG CO LTD HIGHWAY ENG BUREAU CCCC.

Patent filings in countries

World map showing HUNAN PROVINCIAL COMMUNICATIONS PLANNING SURVEY AND DESIGN INST CO LTDs patent filings in countries
# Country Total Patents
#1 China 36

Patent filings per year

Chart showing HUNAN PROVINCIAL COMMUNICATIONS PLANNING SURVEY AND DESIGN INST CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Yu 13
#2 Li Wenwu 11
#3 Liu Rong 10
#4 Bai Shu 9
#5 He Yaobei 8
#6 Yi Zhenyu 8
#7 Fu Lixin 8
#8 Jiang Shengbo 7
#9 Liu Yong 6
#10 Yang Xiong 6

Latest patents

Publication Filing date Title
CN112241411A Spreadsheet structured identification and extraction method based on CAD basic elements
CN112030717A Steel-concrete composite pin combination beam
CN112012761A Construction method of anti-disturbance double-arch tunnel structure
CN112012763A Construction method of double-layer primary support multi-arch tunnel structure
CN112012762A Construction method of double-layer secondary lining multi-arch tunnel structure
CN111852504A Support structure for mountainside tunnel and construction method thereof
CN111811345A Stone breaking method for reducing road unstable steep slope dangerous rock mass catastrophe risk
CN111424608A Mountain river wharf structure
CN111424627A Ship lock extension supporting structure and ship lock extension method
CN111441328A Ship lock overhauls pumping system
CN111411585A Low-shrinkage template-free bridge deck joint structure and construction method
CN111424544A Flexible coupling assembling on bridge steel anticollision barrier
CN111254801A Low-shrinkage bridge structure in hogging moment area and construction method thereof
CN111254817A Multistage anticollision facility of pier
CN111254800A Combined beam suitable for urban bridge and construction method thereof
CN111254799A Assembled composite structure bridge and construction method
CN110593191A Floating pier movable steel approach bridge stair step leveling system adaptive to water level change
CN110617340A Floating type maintenance gate irrigation and drainage valve capable of being quickly opened and closed
CN110016861A A kind of crossbeam-free queen post Cable-stayed Bridge Pylon and the cable-stayed bridge containing it
CN109488372A A kind of tunnel drainage device and its water discharge method