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GUIZHOU YIHUA CHEMICAL CO LTD

Overview
  • Total Patents
    15
  • GoodIP Patent Rank
    183,906
  • Filing trend
    ⇩ 100.0%
About

GUIZHOU YIHUA CHEMICAL CO LTD has a total of 15 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2010. It filed its patents most often in China. Its main competitors in its focus markets chemical engineering, environmental technology and materials and metallurgy are CALGON CARBON CORP, TIANJIN ANBAOLIHENG ENV PROT ENG TECH CO LTD and SHIMADZU SYSTEM SOLUTIONS CO L.

Patent filings in countries

World map showing GUIZHOU YIHUA CHEMICAL CO LTDs patent filings in countries
# Country Total Patents
#1 China 15

Patent filings per year

Chart showing GUIZHOU YIHUA CHEMICAL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yang Sen 5
#2 Liu Yong 5
#3 Huang Zhengyi 5
#4 Faguang Feng 5
#5 Zhang Qingrong 5
#6 Chen Song 5
#7 Long Zhongshu 5
#8 Xiong Chengjiang 5
#9 Li Jun 5
#10 Zhou Yuwen 5

Latest patents

Publication Filing date Title
CN107321134A A kind of adsorption tower for reducing hydrogen and nitrogen gas loss
CN107261728A A kind of dust arrester of coal rod production addition bonding agent process
CN107367177A A kind of exhaust gas cooling device of carbamide production system
CN107224956A It is a kind of to reduce the ammonia process units of energy consumption
CN107265480A A kind of energy-conserving and environment-protective synthetic ammonia installation
CN105148729A Automotive slow-release urea
CN104151202A Urea separation and purification method
CN103937556A Gas-making furnace steam regulating method
CN103937548A Gas-making furnace steam leakage detection method
CN103937557A Gas-making furnace steam pressure balance method
CN102607253A Coal rod baking method
CN102604686A Method for treating coal gas at outlet of gas-making furnace
CN102604684A Method for cleaning bottom of gasifying furnace
CN102536891A Improved structure for draught fan vane wheel
CN102564974A Method for measuring nickel content in urine