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BEIJING DRAINAGE EQUIPMENT CO LTD

Overview
  • Total Patents
    31
  • GoodIP Patent Rank
    50,462
  • Filing trend
    ⇩ 73.0%
About

BEIJING DRAINAGE EQUIPMENT CO LTD has a total of 31 patent applications. It decreased the IP activity by 73.0%. 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 ANGLIAN WATER SERVICES LTD, LOU CAIFEI and ESSA CORP.

Patent filings in countries

World map showing BEIJING DRAINAGE EQUIPMENT CO LTDs patent filings in countries
# Country Total Patents
#1 China 31

Patent filings per year

Chart showing BEIJING DRAINAGE EQUIPMENT CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Qin Chunyu 23
#2 Mu Xiaodong 20
#3 Bi Yongwei 20
#4 Li Zhe 20
#5 Li Yan 20
#6 Guo Yong 19
#7 Wang Zhifeng 19
#8 Li Xiaohui 14
#9 He Jianguo 13
#10 Gao Qiong 11

Latest patents

Publication Filing date Title
CN110950392A One-machine multi-stage filtering pore plate grid and use method thereof
CN110711409A Multi-directional flow precipitation unit and use method thereof
CN110700392A Drainage weir type collecting net and using method thereof
CN110368720A A kind of level stream settler and its application method
CN109292906A A kind of hydraulic cyclone desanding device and its application method
CN109304257A A kind of city planting ductwork recycling sludge disposition integrated apparatus and its application method
CN109289292A A kind of hydraulic screen automatic turning device and its application method
CN109173379A A kind of grid slag water-removing press and its application method
CN109130287A A kind of pressafiner and its application method
CN108049374A A kind of new lock gate for flood protection device and its application method
CN108049428A A kind of intelligence inspection shaft falling proof device and its application method
CN107854870A A kind of nonmetallic chain-type mud scraper chain tensioning device and its application method
CN107988995A A kind of intelligence lock gate for flood protection control device and its control method
CN107854872A A kind of nonmetallic chain-type mud scraper underwater monitoring device and its application method
CN107823952A A kind of roller grid and its application method
CN107352763A A kind of duct type sludge slagging-off automation control system and its control method
CN107350230A A kind of pipeline self-stripping unit and its application method
CN107299674A A kind of quick-mounting formula flood control wound packages for municipal sewage well is put and its application method
CN107311251A In-flow grid and its application method, sewage disposal device for sewage disposal
CN107313498A A kind of intelligent well head flood control cylinder and its application method