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CHEM STONE INC

Overview
  • Total Patents
    15
  • GoodIP Patent Rank
    125,629
About

CHEM STONE INC has a total of 15 patent applications. Its first patent ever was published in 2013. It filed its patents most often in China. Its main competitors in its focus markets organic fine chemistry, chemical engineering and environmental technology are CANGZHOU SENARY CHEMICAL SCIENCE TEC CO LTD, SHANDONG CHUANCHENG PHARMACEUTICAL CO LTD and RHODIA PHARMA SOLUTIONS INC.

Patent filings in countries

World map showing CHEM STONE INCs patent filings in countries
# Country Total Patents
#1 China 15

Patent filings per year

Chart showing CHEM STONE INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lai Yingjie 11
#2 Liang Long 8
#3 Long Xiangtian 5
#4 Lang Fengrui 4
#5 Tan Junrong 3
#6 Cao Benwen 3
#7 Xia Xueliang 3
#8 Wang Xuyan 3
#9 Zhou Lei 3
#10 Bai Libin 2

Latest patents

Publication Filing date Title
CN111793056A Preparation method of duloxetine intermediate
CN111763175A Purification method of 4, 6-dichloro-2- (thiopropyl) -5-aminopyrimidine
CN111039885A Method for preparing high-purity combretastatin
CN110698419A Preparation method of cycleanine
CN110483369A The method for synthesizing (7S) -5- azaspiro [2.4] heptane -7- carbamate
CN110483272A The new method of chiral rhodium catalyst catalysis asymmetric syntheses (1S, 2S) -2- fluorine cyclopropane-carboxylic acid
CN109020830A A kind of methylol cyclopropyl acetonitrile derivative and its methods for making and using same
CN108822122A A method of efficiently preparation 4,4- dimethyl -3,5,8- trioxa-l-phosphabicyclo [5,1,0] octane
CN108840832A A kind of preparation method of Gadobutrol intermediate
CN108299322A A method of preparing high-purity Gadobutrol
CN108047151A A kind of preparation method of Gadobutrol in high yield
CN104311587A Process for producing fluorine-containing phenylboronic acid
CN104447825A Preparation process of (bromomethyl) trifluoro potassium borate
CN104004006A Synthetic method of 3,6-dihydro-2H-pyran-4-boronic acid pinacol ester
CN103694201A Synthesis method of oxetanone