Learn more

CHANGFEI LIU

Overview
  • Total Patents
    12
About

CHANGFEI LIU has a total of 12 patent applications. Its first patent ever was published in 2007. It filed its patents most often in China. Its main competitors in its focus markets environmental technology are JIADING SUN, SENKUS VITAUTAS VALENTINOVICH and SHANDONG XIWANG SUGAR CO LTD.

Patent filings in countries

World map showing CHANGFEI LIUs patent filings in countries
# Country Total Patents
#1 China 12

Patent filings per year

Chart showing CHANGFEI LIUs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Changfei Liu 12
#2 Yuzhang Zhang 3
#3 Yunhe Wang 3
#4 Wei Qin 2
#5 Yuexia Du 1
#6 Ke Li 1
#7 Li Li 1
#8 Weixiong Pan 1

Latest patents

Publication Filing date Title
CN102603427A Method for producing compound fertilizer by using glycine wastewater and abamectin dregs
CN102653431A Chloroacetic acid process glycine wastewater treatment method
CN102653509A Method for co-production of high-purity chloroacetic acid and acetylchloride by using acetic anhydride chlorination
CN102653513A Method for separating mixed crystal solid of glycine and ammonium chloride
CN102167668A Method for producing glycin with environmentally-friendly alcohol phase chloroethanoic acid method
CN102617372A Improved, energy-saving and consumption-reduction chloroacetic acid-based glycine production method
CN102442917A Energy-saving and environment-friendly method for producing glycin based on chloroacetic acid method
CN101805342A Method for recycling urotropine and glycine in glycine-methanol mother liquor
CN101244954A Method for manufacturing chemical fertilizer raw material by using hollow blade drier to process collagen sugar wastewater
CN101209939A Method for preparing fertilizer raw material by using white fertilizer to process glycin waste water
CN101100287A Method for preparing ammonia and hydrogen chloride by decomposing ammonium chloride
CN101099459A Method for treating flower mud in marigold fermenting pressing liquid