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BEIJING DRAINAGE GROUP CO LTD

Overview
  • Total Patents
    158
  • GoodIP Patent Rank
    10,158
  • Filing trend
    ⇧ 250.0%
About

BEIJING DRAINAGE GROUP CO LTD has a total of 158 patent applications. It increased the IP activity by 250.0%. Its first patent ever was published in 2010. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets environmental technology, measurement and civil engineering are ECOBASE CO LTD, SUZHOU FANGZHOU ENVIRONMENTAL PROTECTION TECH CO LTD and BRITA PROFESSIONAL GMBH & CO KG.

Patent filings in countries

World map showing BEIJING DRAINAGE GROUP CO LTDs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Wang Jiawei 51
#2 Jiang Yong 50
#3 Zhang Shujun 39
#4 Chang Jiang 35
#5 Bai Yu 26
#6 Wang Zengyi 26
#7 Yang Chao 25
#8 Li Kuixiao 25
#9 Xu Keju 24
#10 Li Ye 23

Latest patents

Publication Filing date Title
CN112209502A Integrated sewage treatment and anaerobic ammonium oxidation strain retention system and method
CN112046855A Ton bag filling auxiliary device
CN112160899A Intelligent control method and system for water inlet pump room
CN112075320A System and method for preparing organic nutrient soil from urban domestic sludge, organic nutrient soil and application
CN112121761A Sludge carbon-based adsorption material and preparation method thereof
CN111960537A System and method for realizing anaerobic ammonia oxidation denitrification of low-ammonia-nitrogen wastewater by using side anaerobic high-pH and FA to inhibit NOB
CN112028320A System for treating sludge anaerobic digestion liquid through acidless Fenton oxidation and treatment method of sludge anaerobic digestion liquid
CN111960538A System and method for realizing stable operation of shortcut nitrification-anaerobic ammonia oxidation denitrification of low-ammonia nitrogen wastewater
CN111982746A Aeration performance evaluation method of aeration device
CN111689660A Sewage treatment method and device
CN111898256A Method for optimizing urban water environment system
CN111661925A Enhanced denitrification system and method for treating low C/N urban sewage continuous flow
CN111661924A System and method for sulfur autotrophic short-cut denitrification coupling anaerobic ammonia oxidation denitrification
CN111810759A Drainage pipeline plugging device
CN111675322A Method for quickly obtaining high-concentration anaerobic ammonia oxidation granular sludge and anaerobic ammonia oxidation granular sludge
CN111589597A Screening device and screening method for anaerobic ammonia oxidation granular sludge
CN111646661A Energy recovery and fertilizer preparation process based on sludge pyrohydrolysis split-phase digestion
CN111579742A Urban sewage short-cut nitrification effect prejudging device and using method thereof
CN111657098A Nutrient soil and application thereof in desertification control and greening planting
CN111357611A High-organic-matter formula nutrient soil and preparation method thereof