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YUNNAN YUNTIANHUA INTERNAT CHEMICAL CO LTD

Overview
  • Total Patents
    27
  • GoodIP Patent Rank
    195,179
About

YUNNAN YUNTIANHUA INTERNAT CHEMICAL CO LTD has a total of 27 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 and basic materials chemistry are HEFEI DEBO BIOENERGY SCIENCE & TECHNOLOGY CO LTD, LAIWU IRON & STEEL CO LTD and REN ZONGJUN.

Patent filings in countries

World map showing YUNNAN YUNTIANHUA INTERNAT CHEMICAL CO LTDs patent filings in countries
# Country Total Patents
#1 China 27

Patent filings per year

Chart showing YUNNAN YUNTIANHUA INTERNAT CHEMICAL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Zhixiang 7
#2 Ming Dazeng 7
#3 Dazeng Ming 5
#4 Zhixiang Li 5
#5 Tianrong Li 3
#6 Li Yingxiang 3
#7 Yang Yuehua 2
#8 Xie Zhongyong 2
#9 Li Tianrong 2
#10 Shen Liying 2

Latest patents

Publication Filing date Title
CN104261900A Method for producing magnesium ammonium phosphate fertilizer by utilizing phosphoric acid sludge through wet process
CN104229764A Method for continuously producing water-soluble monoammonium phosphate by using wet-process phosphoric acid
CN104261371A Method for producing diammonium phosphate from high-impurity phosphorite
CN104045582A Method for producing feed-grade urea phosphate from urea phosphate mother solution
CN104045069A Method for carrying out temperature and pressure reduction on steam used in phosphoric acid concentration system
CN103523764A Method for reducing magnesium and aluminum impurities in wet-process phosphoric acid
CN103073031A Method for preparing lithium fluoride from phosphate fertilizer by-product sodium fluoride
CN103041682A Application method of fine desulfurization in sulfuric acid exhaust absorption
CN102530971A Washing method of fluorine-containing silica gel
CN102502524A Method for producing sulfur dioxide from calcium sulfate and sulfur
CN102311105A Production method of emerald diammonium phosphate
CN102390821A Method for producing dihydrate wet-process phosphoric acid
CN102302895A Purification method of sulfur dioxide tail gas
CN102079524A Wet purification method of silicon
CN102161487A Method for producing pure silicon by using by-product silica gel in phosphate fertilizer industry
CN102020261A Method for lowering synthesis temperature of sodium monofluorophosphate
CN101973568A Comprehensive utilization method of gypsum containing fluorine and fluosilicic acid as byproduct of phosphatic fertilizer
CN101973549A Method for producing silicon carbide from silica gel byproduct in phosphorous fertilizer production
CN101863482A Method for continuously preparing white carbon black and ammonium fluoride by carrying out fluosilicic acid ammoniation
CN101817502A Method for preparing hydrogen from hydrothion and industrial tail gas