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WEIFANG ENSIGN INDUSTRY CO LTD

Overview
  • Total Patents
    11
  • GoodIP Patent Rank
    212,918
About

WEIFANG ENSIGN INDUSTRY CO LTD has a total of 11 patent applications. Its first patent ever was published in 2011. It filed its patents most often in China. Its main competitors in its focus markets organic fine chemistry, biotechnology and chemical engineering are FEICHENG PYRAMID MACHINERY CO LTD, LANZHOU CT FOR OIL AND GAS RESOURCES INST OF GEOLOGY AND GEOPHYSICS CAS and BATULLIN FARID ALEKOVICH.

Patent filings in countries

World map showing WEIFANG ENSIGN INDUSTRY CO LTDs patent filings in countries
# Country Total Patents
#1 China 11

Patent filings per year

Chart showing WEIFANG ENSIGN INDUSTRY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Jian 9
#2 Zhang Chuanhui 8
#3 Ma Qinyuan 8
#4 Yu Minghua 6
#5 Chen Jinfeng 5
#6 Wang Siying 5
#7 Gao Xiuzhen 3
#8 Qinyuan Ma 2
#9 Shiyong Li 2
#10 Siying Wang 2

Latest patents

Publication Filing date Title
CN105152912A Citric acid fermentation solution pretreatment method
CN105001078A Clean production method for extracting citric acid from citric acid fermented clear liquid
CN105039137A Liquefaction energy-saving system and method for citric acid production
CN103750525A Preparation technology for anti-caking citric acid product and product
CN103710397A Technique for preparing citric acid by fermenting beta-cyclodextrin mother solution
CN103691493A Anion exchange resin process water-saving method and device
CN103693787A Purification treatment technology of sodium citrate crystalline mother solution
CN103664579A Purification treatment technology of citric acid crystallization mother liquor and treatment device
CN102584051A Method for producing mixed gypsum powder by utilizing citric acid waste residue one-step process
CN102584052A Method for producing alpha high-strength gypsum by utilizing citric acid waste residues
CN102241585A Process for purifying citric acid mother liquor