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LIAONING DEFENG PHARMACEUTICAL & CHEMICAL CO LTD

Overview
  • Total Patents
    21
  • GoodIP Patent Rank
    173,028
About

LIAONING DEFENG PHARMACEUTICAL & CHEMICAL CO LTD has a total of 21 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 and chemical engineering are ZAOYANG TIANYAN GUIPU MAT CO LTD, CHENGDU DONGDIAN AIER SCIENCE AND TECH CO LTD and CHANGZHOU YONGHE FINE CHEMICAL CO LTD.

Patent filings in countries

World map showing LIAONING DEFENG PHARMACEUTICAL & CHEMICAL CO LTDs patent filings in countries
# Country Total Patents
#1 China 21

Patent filings per year

Chart showing LIAONING DEFENG PHARMACEUTICAL & CHEMICAL CO LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Wang Defeng 21
#2 Yu Jianjun 14
#3 Shi Fei 12
#4 Wang Bingcai 9
#5 Zhu Xiaofei 5
#6 Wu Dishan 4
#7 Qian Jian 3
#8 Zhang Yaobing 2
#9 Zhang Yaobin 2
#10 Cheng Wei 1

Latest patents

Publication Filing date Title
CN104713981A Content calculation method of 2,4-dichloro-3-nitro-5-fluorobenzoyl chloride generated by acylation reaction
CN104043621A Cleaning method for gas-phase or liquid-phase sample injection small bottle
CN104045514A Synthetic method for 2-butyne-1-ol
CN104163827A Synthetic method of sodium beta-glycerophosphate
CN104045561A Synthetic method for 3,3,5-trimethylcyclohexanol salicylate
CN104049045A Gas phase needle maintenance method for high-viscosity or high-freezing point substances
CN104198596A Detection method of solvent residue in sodium propylthiouracil salt
CN104163756A Synthetic method of 2-hydroxy-4-methoxybenzophenone
CN104193616A A synthetic method of 2-chloro-5-iodobenzoic acid
CN103506133A Anti-dehalogenation Pd-Fe/C catalyst for preparing halogen aniline and preparation method of same
CN103508932A Method for synthesizing diabetes drug-glimepiride
CN103508879A Synthesis method of halogenated alkoxyl acetic acid
CN103524332A Synthesis method of 2-[2-(2-methoxyethoxy) ethoxy] acetic acid
CN103601661A Synthetic method for II-type diabetes medicine glimepiride by using triphosgene
CN103497111A Synthetic method for 2, 3, 4-trifluoroaniline
CN103483203A Synthesis method of 2,4-dichloro-3-nitro-5-fluorobenzoic acid carbonic oxide
CN103483145A Improved synthesis method of dichlorofluorobenzene
CN103420874A Synthesis method of key intermediate isocyanate of hypoglycemic medicine
CN103304422A Synthesis method for 2,4-dichloro-3-nitro-5-fluorobenzoic acid
CN102875527A Preparation method of desloratadine