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SHANGHAI PUYI CHEMICAL CO LTD

Overview
  • Total Patents
    21
  • GoodIP Patent Rank
    183,740
  • Filing trend
    ⇧ 200.0%
About

SHANGHAI PUYI CHEMICAL CO LTD has a total of 21 patent applications. It increased the IP activity by 200.0%. Its first patent ever was published in 2008. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and Canada. Its main competitors in its focus markets organic fine chemistry, pharmaceuticals and environmental technology are INST INTERNACIONAL TERAPEUTICO, CONGENIA S R L and POISON MED INST PLA MED ACAD.

Patent filings per year

Chart showing SHANGHAI PUYI CHEMICAL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wang Bo 11
#2 Li Tao 9
#3 Yang Hanrong 6
#4 Tao Rongsheng 4
#5 Qi Yantao 4
#6 Bo Wang 3
#7 Meng Linghua 3
#8 Su Mingbo 3
#9 Chen Fei 3
#10 Wang Shixian 3

Latest patents

Publication Filing date Title
CN103896951A Synthetic method of 2-methyl-pyrazolo-[1,5-a]-pyrimidine-6-carboxylic acid
CN103833552A Method for industrially purifying ethyl eicosapentaenoate
CN103865964A Method for synthesizing (R)-3-amino-piperidine by adopting transaminase method
CN103450040A Synthesis method of D-threonine
CN103966276A Method for synthesizing DL-serine through enzyme catalysis method
CN103936703A Preparation method of 5-oxaspiro[2,4]heptane-6-one and intermediate thereof
CN103896826A Asymmetric synthesis method of nitrogen protected (3R,4R)-3-methylamino-4-methylpiperidine, and relevant intermediate and raw material preparation method
CN103539714A Preparation methods of 1-(mercaptomethyl)cyclopropyl acetic acid and intermediate thereof
CN103483242A Preparation methods of 4-(2'-pyridyl)benzyl hydrazine and its intermediate
CN103058888A Preparation method of (R)-3-t-butyloxycarboryl-amino-4-(2, 4, 5-trifluorobenzene) butyric acid
CN101913998A Preparation method of 4-bromo-2-(3-methoxyl propoxy)-anisol
CN102070643A Method for producing irinotecan
CN101671323A Method for synthesizing 1,2,6,7-tetrahydro-8H-indeno[5,4-b]furan-8-ketone