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KEFALAS AS

Overview
  • Total Patents
    483
About

KEFALAS AS has a total of 483 patent applications. Its first patent ever was published in 1957. It filed its patents most often in Denmark, United States and Finland. Its main competitors in its focus markets organic fine chemistry, pharmaceuticals and environmental technology are QIAN XIANGPING, PROTIVA MIROSLAV and THIEMANN CHEM PHARM FAB.

Patent filings per year

Chart showing KEFALAS ASs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lassen N 54
#2 Lassen Niels 50
#3 Petersen P 25
#4 Niels Lassen 16
#5 Buus Jorn Lasse Martin 15
#6 Holm Torkil 15
#7 Hansen Peter Bregnedal 14
#8 Buus J L M 14
#9 Buus Joern Lasse Martin 14
#10 Holm Torkil O 13

Latest patents

Publication Filing date Title
IE832240L Phenylindene derivatives,acid addition salts thereof,and methods of preparation
GB8318845D0 Organic compounds
GB8314391D0 Heterocyclic compounds
IL66831D0 Indane derivatives
US4353910A Derivatives of 4,5,6,7-tetrahydroisoxazolo [5,4-c] pyridine-3-one, pharmaceutical compositions and methods of treatment
GB2088371A Tetrahydroisoxazolopyridine compounds
GB2088370A Tetrahydroisoxazolopyridine compounds
DE3145474A1 3-Substituted 4,5,6,7-tetrahydroisoxazolo[5,4-c]pyridine compounds, process for their preparation and medicaments containing them
DE3145473A1 2-Substituted 4,5,6,7-tetrahydroisoxazolo[5,4-c]pyridin-3-one compounds, processs for their preparation and medicaments containing them
IE810315L Indane derivatives
CA1142183A Nitrosourea derivatives, pharmaceutical compositions thereof and method of preparation
US4367239A Nitrosourea derivatives, pharmaceutical compositions thereof and method of preparation
IE801789L Nitrosourea derivatives,process for preparing them,and pharmaceutical compositions containing them
ATA571979A Method for the production of new phthalane derivatives and their pharmaceutically compatible acid addition salts
ATA572079A Method for the production of new phthalane derivatives and their pharmaceutically compatible acid addition salts
US4285956A Xanthene and thioxanthene derivatives, compositions thereof and treatment therewith
US4232021A Anti-depressant methods
DK581678A Procedure for preparing the unknown unknown compound 2-methylthio-6-fluoro-9- (1-methyl-4-piperidyllide) thioxant or acid addition salts thereof
NZ189108A 2-methylthio-6-fluoro-9-(1-methyl-4-piperidylidene)-thioxanthene and pharmaceutical compositions intermediate 2-methylthio-6-fluoro-9-(1-methyl-4-piperidyl)-thioxanthen-9-ol
IE782377L Piperidylidene -thioxanthene derivatives