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SHANGHAI PUYI CHEMICAL TECHNOLOGY CO LTD

Overview
  • Total Patents
    11
About

SHANGHAI PUYI CHEMICAL TECHNOLOGY CO LTD has a total of 11 patent applications. Its first patent ever was published in 2009. It filed its patents most often in China, EPO (European Patent Office) and United States. Its main competitors in its focus markets environmental technology and organic fine chemistry are ASTATECH CHENGDU PHARMACEUTICAL CO LTD, HARBIN PHARMACEUTICAL GROUP TECHNOLOGY CT and SHANDONG LUOXIN PHARMACY STOCK.

Patent filings in countries

World map showing SHANGHAI PUYI CHEMICAL TECHNOLOGY CO LTDs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Wang Bo 11
#2 Qi Yantao 5
#3 Shentu Xiaobo 5
#4 Xie Lingshi 5
#5 Cheng Jianwei 1
#6 Luo Yu 1
#7 Li Tao 1

Latest patents

Publication Filing date Title
CN104277036A Purification method for (4aS,7aS)-octahydro-1H-pyrrolo[3,4-b]pyridine
CN104250277A Purifying preparation method of gemcitabine hydrochloride
CN104250222A Improvement method of preparation technology of tert-butyl (E)-7-[3'-(4''-fluorophenyl)-1'-methylethyl-indol-2'-yl)-3-oxo-5-hydroxy-6-heptenoate
CN103086937A Method for synthesizing paricalcitol
WO2013053281A1 Asymmetric synthesis method, related raw material and preparation method of (s,s)-2,8-diazabicyclo[4,3,0]nonane
CN103588699A Asymmetric syntheses method and correlated intermediate of (R)-3-aminopiperidine (I)
CN103086948A Preparation method of (S,S,S)-2-azabicyclo[3,3,0]octane-3-carboxylic acid
CN101955435A New method for preparing tyramine