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CHINA NERIN ENG CO LTD

Overview
  • Total Patents
    224
  • GoodIP Patent Rank
    12,471
  • Filing trend
    ⇧ 25.0%
About

CHINA NERIN ENG CO LTD has a total of 224 patent applications. It increased the IP activity by 25.0%. Its first patent ever was published in 2007. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and Chile. Its main competitors in its focus markets environmental technology, materials and metallurgy and chemical engineering are SHANDONG HUMON SMELTING CO LTD, YUNNAN CHIHONG ZINC & GERMANIUM CO LTD and JINCHUAN GROUP CO LTD.

Patent filings in countries

World map showing CHINA NERIN ENG CO LTDs patent filings in countries

Patent filings per year

Chart showing CHINA NERIN ENG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wang Wei 26
#2 Cao Xuexin 13
#3 Tu Jianhua 12
#4 Haifan Cheng 11
#5 Huang Wenhua 11
#6 Liu Tao 11
#7 Lei Cunyou 11
#8 Yang Huilan 10
#9 Zhou Qing 9
#10 Luo Chao 8

Latest patents

Publication Filing date Title
CN112281829A Composite pile foundation structure and construction method thereof
CN112116785A Tailing pond disaster early warning method and device based on strong rainfall weather forecast
CN111851688A Leachate guide and drainage system
CN111616524A Open dangerous waste temporary storage device
CN111605923A Waste landfill device, rigid landfill site and waste landfill method
CN111042153A Capacity expansion method for anti-seepage wet-discharge tailing pond
CN110859111A Sludge pit surface ecological restoration sealing greening bearing system and method
CN110938842A Copper electrolyte purification method
CN110801782A Gas outlet device of sulfur dioxide converter
CN110724830A Crude copper refining equipment and refining method
CN110626731A Feeding system for overhead ore bin
CN110593242A Heavy-load ground foundation structure of seepage-proofing area of soft foundation and processing method thereof
CN110629036A Continuous copper smelting equipment and copper smelting method
CN112142220A System and method for softening wastewater
WO2020199382A1 Method and system for continuously purifying sewage by using gas
CN112050649A Nozzle assembly for reactor and reactor
CN112044359A Blowing device for reactor and reactor
CN112050650A Nozzle assembly for reactor and reactor
CN111853798A Incinerator for treating waste and method for treating waste by using same
CN109964695A A kind of strong acid heavy metal Mine Stope rock side slope ecological recovery plants growbag structure and production method