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CHANGSHA HUASHIJIE ENVIRONMENTAL PROT TECHNOLOGY DEV CO LTD

Overview
  • Total Patents
    16
  • GoodIP Patent Rank
    139,842
About

CHANGSHA HUASHIJIE ENVIRONMENTAL PROT TECHNOLOGY DEV CO LTD has a total of 16 patent applications. Its first patent ever was published in 2009. It filed its patents most often in China. Its main competitors in its focus markets basic materials chemistry and environmental technology are INST MINERAL RESOURCES CHINESE ACADEMY GEOL SCIENCES, ZHAN XILIN and ZHEJIANG SINO GEO CLEAN SOIL CO LTD.

Patent filings in countries

World map showing CHANGSHA HUASHIJIE ENVIRONMENTAL PROT TECHNOLOGY DEV CO LTDs patent filings in countries
# Country Total Patents
#1 China 16

Patent filings per year

Chart showing CHANGSHA HUASHIJIE ENVIRONMENTAL PROT TECHNOLOGY DEV CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tan Ziqiang 11
#2 He Jinsong 8
#3 Jiang Xiaoyun 8
#4 Liang Xuewu 6
#5 Li Peng 6
#6 Xu Xianfeng 5
#7 Wang Qiang 5
#8 Chen Hui 5
#9 Zhou Cainan 3
#10 Ren Heng 3

Latest patents

Publication Filing date Title
CN105289215A Flue gas circulating desulfurization method and system
CN105203356A Portable flue gas sampling device
CN104986894A Method and device for softening high-hardness waste water through gas and liquid combination
CN104891726A Treatment system for high-concentration ammonia-nitrogen wastewater
CN104926012A Treatment process for high-concentration ammonium-nitrogen waste water
CN104845629A Leaching agent and leaching method for repairing heavy metal contaminated soil
CN104845626A Passivating agent for governing heavy metal contaminated soil and preparation and use method of passivating agent
CN104787933A Treatment method for gold-smelting cyanide-containing wastewater
CN104876311A Alkaline iron salt mixed reagent for treating heavy metal wastewater as well as preparation method and application thereof
CN104803452A Automatic control method for electrochemistry heavy metal sewage treatment system
CN104208985A Flue gas desulfurization method and system
CN104226096A Multi-flow-path circulating desulfurization system and multi-flow-path circulating desulfurization method
CN102557174A Method for degrading ammonia nitrogen waste water by using device for treating ammonia nitrogen waste water
CN102515401A Cyanide wastewater degradation system and cyanide wastewater degradation method thereof
CN101556223A Mercury drop formation device
CN101556289A Total cobalt on-line automonitor