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BEIJING URBAN DRAINAGE GROUP CO LTD

Overview
  • Total Patents
    17
About

BEIJING URBAN DRAINAGE GROUP CO LTD has a total of 17 patent applications. Its first patent ever was published in 2008. It filed its patents most often in China. Its main competitors in its focus markets environmental technology are LE NII AKAD KOMMUNALNOGO KHOZ, TIANJIN MUNICIPAL ENGINEERING and SANITARY DISPOSAL SYSTEM.

Patent filings in countries

World map showing BEIJING URBAN DRAINAGE GROUP CO LTDs patent filings in countries
# Country Total Patents
#1 China 17

Patent filings per year

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

Focus industries

Top inventors

# Name Total Patents
#1 Yiping Gan 12
#2 Zhou Jun 10
#3 Jiang Chang 6
#4 Gan Yiping 4
#5 Ying Zhao 4
#6 Anming Yang 4
#7 Shujun Zhang 4
#8 Yongzhen Peng 4
#9 Jinhua Gao 3
#10 Jian Yang 3

Latest patents

Publication Filing date Title
CN102311188A Groundwater recharge method from municipal wastewater by iron loaded anion resin plus coagulation sedimentation technology and device thereof
CN102311209A Method and apparatus used in membrane bio-reactor (MBR) technology for recharging underground water with municipal sewage
CN102311208A Method and device for supplying underground water with municipal sewage through biofilter and ultrafiltration technology
CN102320689A Continuous flow granular sludge reactor and running method
CN102225808A Checkgate apparatus and control method of accurately distributing inflow water for sewage treatment
CN102198978A Apparatus for realizing short-cut nitrification by membrane bioreactor and method thereof
CN102183519A Method for detecting sludge cell wall breakage
CN102126822A Active sludge floatation thickening device and method for membrane biological reaction tank process
CN102183619A Kit for measuring acute toxicity of aqueous substances by using large siphonaptera, and manufacturing method and using method thereof
CN101900686A Real-time recognition and pre-warning method for water bloom degree of water body
CN101898831A Waste water treatment device and process for synchronously removing nitrogen and phosphorus of sludge concentration microenvironment
CN101921019A Sewage treatment plant inflow weir-adjustable control device and process
CN101792229A Folded plate type water inlet carbon source optimizing device for sewage treatment plant and process
CN101655461A Method for determining ion content of cationic polyacrylamide by utilizing spectrophotometry
CN101580329A Device for anaerobic removal of organic matters in municipal sewage and denitrification of autotrophic organism and method
CN101318741A Apparatus and method for synchronous denitrification and development of sewage sludge internal carbon source of urban sewage
CN101333058A Apparatus and method for denitrifying sludge peptic juice and stabilizing sludge for municipal sewage plant