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HANGZHOU DONGRI ENERGY EFFICIENT TECH CO LTD

Overview
  • Total Patents
    15
  • GoodIP Patent Rank
    114,907
  • Filing trend
    ⇧ 100.0%
About

HANGZHOU DONGRI ENERGY EFFICIENT TECH CO LTD has a total of 15 patent applications. It increased the IP activity by 100.0%. Its first patent ever was published in 2017. It filed its patents most often in China. Its main competitors in its focus markets materials and metallurgy, chemical engineering and environmental technology are CIE GENERALE DES EAUX, CHEN YUDONG and CHEM FAB BUDENHEIM AKTIENGESEL.

Patent filings in countries

World map showing HANGZHOU DONGRI ENERGY EFFICIENT TECH CO LTDs patent filings in countries
# Country Total Patents
#1 China 15

Patent filings per year

Chart showing HANGZHOU DONGRI ENERGY EFFICIENT TECH CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Qiu Xiaofeng 14
#2 Tong Xinyang 14
#3 Qiu Shufeng 9
#4 Jiang Siwei 8
#5 Xu Linbo 6
#6 Gou Zhen 4
#7 Wang Weichao 3
#8 Wang Haiyang 2
#9 Qiu Lu 2
#10 Ge Ruimin 1

Latest patents

Publication Filing date Title
CN112090235A Purification system and purification process for hydrochloric acid as byproduct of chlorination reaction
CN111330412A System and process for absorbing and purifying byproduct hydrogen chloride gas in chlorination workshop section to form acid
CN111346485A System and process for desulfurizing and denitrifying flue gas by-product hydrochloric acid through incineration
CN110642229A Mixed analysis purification process and mixed analysis purification device for siloxane-containing hydrochloric acid and organic matter-containing sulfuric acid
CN110562923A Analytical purification process and analytical purification device for diluted hydrochloric acid containing siloxane
CN110734045A method for removing siloxane from concentrated sulfuric acid containing siloxane
CN109734058A A kind of washing chloromethanes sulfur waste acid purification system and technique
CN109650339A Hydrolyzing chlorosilane prepares the technique and device of hydrogen chloride
CN109574790A Chloromethanes is synthesized without by-product hydrochloric acid technique and its equipment
CN109052336A A kind of dry by-product dilute sulfuric acid purification enrichment facility of chloromethanes and technique
CN109078351A A kind of defluorinate chlorine tower and technique and device using fluorine chlorine in tower removing sulfuric acid
CN108525337A A kind of dilute hydrochloric acid is concentrated in vacuo tower and its application method
CN108383085A A kind of continuity method hydrochloric acid full stripping produces the device and method of hydrogen chloride gas
CN107364943A Catalytic wet oxidation administers the device and its technique of hydrochloric organic wastewater
CN107399804A Catalytic wet oxidation administers the device and its Processing tecchnics of sulfur acid organic wastewater