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NINGBO DAHONGYING BIO ENGINEERING CO LTD

Overview
  • Total Patents
    20
  • GoodIP Patent Rank
    109,496
About

NINGBO DAHONGYING BIO ENGINEERING CO LTD has a total of 20 patent applications. Its first patent ever was published in 2012. It filed its patents most often in China. Its main competitors in its focus markets organic fine chemistry and chemical engineering are EUROTECNICA GROUP S A, ANHUI XINGYU CHEMICAL CO LTD and CHONGZHOU HERUI TECHNOLOGY CO LTD.

Patent filings in countries

World map showing NINGBO DAHONGYING BIO ENGINEERING CO LTDs patent filings in countries
# Country Total Patents
#1 China 20

Patent filings per year

Chart showing NINGBO DAHONGYING BIO ENGINEERING CO LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Zhang Yuanren 20
#2 Wang Jialei 9
#3 Xiao Xiang 6
#4 Zhen Hongfeng 4
#5 Wei Guohua 4
#6 Zhang Xiaoping 3
#7 Zhang Sheng 3
#8 Bao Fangjie 3
#9 Shuai Guohong 2
#10 Yang Weixiao 2

Latest patents

Publication Filing date Title
CN104262315A Method for separating and purifying tocotrienols
CN104230872A Separation and purification method of d-delta-tocopherol
CN104262076A Method of purifying plant-derived squalene by utilizing silver nitrate silica gel chromatography
CN104190345A Reaction kettle
CN104043388A Reaction kettle
CN104074981A Sealing device of reaction kettle
CN104029887A Solution bottle used for chemical equipment
CN104028345A Medicinal material pulverizing machine
CN104028203A Stirring shaft of cold separation kettle
CN104028195A Reaction kettle
CN104014296A Reaction kettle for preventing binder
CN104014384A Test tube comparison retainer
CN104029860A Shower sterilization device
CN104028325A Constant-temperature test tube box
CN104028193A Reaction container provided with stirring device
CN103588744A Method for removing plasticizer from natural vitamin E
CN103304533A Method for removing dioxin in natural vitamin E
CN103288571A Method for separating and extracting squalene in mixed tocopherols
CN103012351A Technology for purifying natural vitamin E
CN103012352A Separation and purification method for mixed tocopherols