Learn more

WISON ENG LTD

Overview
  • Total Patents
    90
  • GoodIP Patent Rank
    22,242
  • Filing trend
    ⇩ 11.0%
About

WISON ENG LTD has a total of 90 patent applications. It decreased the IP activity by 11.0%. Its first patent ever was published in 2008. It filed its patents most often in China, EPO (European Patent Office) and United States. Its main competitors in its focus markets organic fine chemistry, environmental technology and basic materials chemistry are RAFEL IND GROUP LTD, KAIRUI ENVIRONMENTAL PROTECTION TECH CO LTD and STONE & WEBSTER INC.

Patent filings in countries

World map showing WISON ENG LTDs patent filings in countries
# Country Total Patents
#1 China 88
#2 EPO (European Patent Office) 1
#3 United States 1

Patent filings per year

Chart showing WISON ENG LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lyu Jianning 33
#2 Li Yansheng 30
#3 Yang Wenshu 18
#4 Gong Wanfu 18
#5 Yan Binghai 16
#6 Hou Ning 14
#7 Ding Ganhong 14
#8 Xu Guohui 10
#9 Wu Yongjun 9
#10 Li Baoyou 8

Latest patents

Publication Filing date Title
CN110272333A A method of recycling propylene glycol monomethyl ether
CN110330413A A method of propylene glycol monomethyl ether in recycling alcohol ether aqueous solution logistics
CN110256186A A kind of method of low-carbon alkanes oxidative dehydrogenation alkene
CN111892472A Method and system for preparing ethylene by catalytic oxidative dehydrogenation of low-carbon hydrocarbon
CN111892473A Method and system for producing ethylene from low-carbon hydrocarbon through oxidative dehydrogenation
CN110026234A A kind of alkylation catalyst and its preparation method and application
CN111825516A Separation system and separation method of crude butadiene
CN111692895A Cold torch gas liquid separating, vaporizing and heating system
CN110017500A A kind of heating furnace fuel control system, fuel adjusting method and heating furnace
CN109825329A A kind of fractionating system and fractional method
CN109762590A A kind of fractionating system and fractional method
CN111423308A Product separation system and separation method for preparing ethanol by methyl acetate hydrogenation
CN109593581A It is a kind of once to pass through methanation process
CN109593579A It is a kind of once to pass through methanation process
CN109609221A A kind of semi-coke furnace tail gas fine de-sulfur and isothermal methanation process
CN109593580A A kind of semi-coke furnace tail gas fine de-sulfur and adiabatic methanation process
CN111285755A Separation method of reaction product for preparing dimethyl ether by methanol dehydration
CN111253213A Process method and system for preparing ethanol by acetate hydrogenation
CN110871105A ZSM-5 molecular sieve catalyst and preparation method and application thereof
CN110872126A Modification method for outer surface of ZSM-5 molecular sieve