Patents by Inventor Darko Kocjan

Darko Kocjan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9453030
    Abstract: The present invention relates to oxidative degradation products of atorvastatin calcium and the process of the preparation thereof. The present invention also relates to atorvastatin calcium substantially free of oxidative degradation products and the pharmaceutical compositions containing such atorvastatin calcium.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: September 27, 2016
    Assignee: Lek Pharmaceuticals d.d.
    Inventors: Rok Grahek, Darko Kocjan, Andrej Bastarda, Andrej Kocijan, Matjaz Kracun
  • Publication number: 20150105551
    Abstract: The present invention relates to oxidative degradation products of atorvastatin calcium and the process of the preparation thereof. The present invention also relates to atorvastatin calcium substantially free of oxidative degradation products and the pharmaceutical compositions containing such atorvastatin calcium.
    Type: Application
    Filed: December 18, 2014
    Publication date: April 16, 2015
    Inventors: Rok GRAHEK, Darko KOCJAN, Andrej BASTARDA, Andrej KOCIJAN, Matjaz KRACUN
  • Patent number: 8044086
    Abstract: The present invention relates to oxidative degradation products of atorvastatin calcium and the process of the preparation thereof. The present invention also relates to atorvastatin calcium substantially free of oxidative degradation products and the pharmaceutical compositions containing such atorvastatin calcium.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: October 25, 2011
    Assignee: Lek Pharmaceuticals D.D.
    Inventors: Rok Grahek, Darko Kocjan, Andrej Bastarda, Andrej Kocijan, Matjaz Kracun
  • Publication number: 20110112165
    Abstract: A new compound in which atorvastatin and aliskiren are covalently bound, salts of this compound, pharmaceutical compositions thereof, as well the use of this compound as a medicament and as an impurity standard are provided. Furthermore, a 0 process for the preparation of a compound in which atorvastatin and aliskiren are covalently bound, a method for analyzing a sample of atorvastatin and/or aliskiren, and a method for determining the retention time on a chromatographic system for atorvastatin and/or aliskiren are provided.
    Type: Application
    Filed: January 13, 2009
    Publication date: May 12, 2011
    Inventors: Andrej Kocijan, Matjaz Kracun, Andrej Bastarda, Rok Grahek, Darko Kocjan
  • Publication number: 20100219063
    Abstract: The present invention relates to oxidative degradation products of atorvastatin calcium and the process of the preparation thereof. The present invention also relates to atorvastatin calcium substantially free of oxidative degradation products and the pharmaceutical compositions containing such atorvastatin calcium.
    Type: Application
    Filed: April 30, 2010
    Publication date: September 2, 2010
    Applicant: Lek Pharmaceuticals D.D.
    Inventors: Rok GRAHEK, Darko Kocjan, Andrej Bastarda, Andrej Kocijan, Matjaz Kracun
  • Publication number: 20100056605
    Abstract: The present invention relates to oxidative degradation products of atorvastatin calcium and the process of the preparation thereof. The present invention also relates to atorvastatin calcium substantially free of oxidative degradation products and the pharmaceutical compositions containing such atorvastatin calcium.
    Type: Application
    Filed: November 6, 2009
    Publication date: March 4, 2010
    Applicant: LEK PHARMACEUTICALS D.D.
    Inventors: Rok Grahek, Darko Kocjan, Andrej Bastarda, Andrej Kocijan, Matjaz Kracun
  • Patent number: 7560474
    Abstract: The novel derivatives of pyridilethanol (phenylethyl) amines of formula I are described wherein n is an integer from 1 to 4, R1 is a hydrogen atom, hydroxyl group or lower C1-6alkoxy group R2 is a hydrogen atom or a straight or branched lower C1-6alkyl group X, is hydrogen, fluorine, chlorine, bromine, hydroxyl group, trifluoromethyl group, 3,4-di-Cl,2,4-di-Cl or lower C1-6alkoxy group, the enantiomers, diastereoisomers or racemates thereof or the physiologically acceptable acid addition salts thereof which are ligands of sigma receptors for inhibiting cholesterol biosynthesis and are thus appropriate for the treatment of hypercholesterolemia and hyperlipemia in humans. The greatest lowering of cholesterol was observed by 1-(d-pyridyl)-2-(N-(2-(3,4-dicholorophenyl)ethyl-N-propylamino)ethanol in the form of dihydrobromide salt (signature BK-35, 2HBr).
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: July 14, 2009
    Assignee: Lek Pharmaceuticals d.d.
    Inventors: Breda Rode, Damjana Rozman, Klementina Fon Tacer, Darko Kocjan
  • Publication number: 20090018118
    Abstract: The invention is related to novel substituted diazaheterocycles useful as effective antihypercholesterolemic agents, methods of their preparation, and pharmaceutical compositions containing them.
    Type: Application
    Filed: December 27, 2006
    Publication date: January 15, 2009
    Inventors: Uros Urleb, Darko Kocjan, Tina Korosec, Damjana Rozman, Jure Acimovic, Alenka Tomazic, Breda Rode
  • Publication number: 20070208071
    Abstract: The present invention relates to oxidative degradation products of atorvastatin calcium and the process of the preparation thereof. The present invention also relates to atorvastatin calcium substantially free of oxidative degradation products and the pharmaceutical compositions containing such atorvastatin calcium.
    Type: Application
    Filed: July 15, 2005
    Publication date: September 6, 2007
    Applicant: LEK PHARMACEUTICALS D.D.
    Inventors: Rok Grahek, Darko Kocjan, Andrej Bastarda, Andrej Kocijan, Matjaz Kracun
  • Publication number: 20050256172
    Abstract: The novel derivatives of pyridilethanol (phenylethyl) amines of formula I are described wherein n is an integer from 1 to 4, R1 is a hydrogen atom, hydroxyl group or lower C1-6alkoxy group R2 is a hydrogen atom or a straight or branched lower C1-6alkyl group X, is hydrogen, fluorine, chlorine, bromine, hydroxyl group, trifluoromethyl group, 3,4-di-Cl,2,4-di-Cl or lower C1-6alkoxy group, the enantiomers, diastereoisomers or racemates thereof or the physiologically acceptable acid addition salts thereof which are ligands of sigma receptors for inhibiting cholesterol biosynthesis and are thus appropriate for the treatment of hypercholesterolemia and hyperlipemia in humans. The greatest lowering of cholesterol was observed by 1-(d-pyridyl)-2-(N-(2-(3,4-dicholorophenyl)ethyl-N-propylamino)ethanol in the form of dihydrobromide salt (signature BK-35, 2HBr).
    Type: Application
    Filed: July 9, 2003
    Publication date: November 17, 2005
    Inventors: Breda Rode, Damjana Rozman, Klementina Fon Tacer, Darko Kocjan
  • Patent number: 6489318
    Abstract: Disclosed are novel ethylidene derivatives of tricyclic carbapenems of the formula I wherein the ring marked C and X have the meaning as in the description, in the form of pure diastereoisomers and in the form of pure geometric isomers. Novel ethylidene derivatives of tricyclic carbapenems of the formula I are used as inhibitors of the action of the enzyme &bgr;-lactamase and/or as antibiotics in human and veterinary medicine. Also disclosed are pharmaceutical formulations for the treatment of bacterial infections of human and animal organisms comprising as an active ingredient a therapeutically effective amount of an ethylidene derivative of tricyclic carbapenems of the formula I in the form of an acid, a pharmaceutically acceptable salt or ester thereof and optionally in a combination with a &bgr;-lactam antibiotic, and usual pharmaceutically acceptable carriers and auxiliary substances.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: December 3, 2002
    Assignee: LEK, tovarna farmacevtskih in kemicnih izdelkov, d.d.
    Inventors: Anton {haeck over (C)}opar, Toma{overscore (z)} {overscore (S)}olmajer, Borut An{haeck over (z)}i{haeck over (c)}, Tadeja Kuzman, Toma{overscore (z)} Mesar, Darko Kocjan
  • Patent number: 4769465
    Abstract: A new, technologically easily feasible process for the preparation of 2-(N-benzyl-N-methylamino)ethyl methyl 2,6-dimethyl-4(m-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate, comprising a partrial hydrolysis of dimethyl 2,6-dimethyl-4-(m-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate in an inert organic solvent at a temperature between room temperature and the reflux temperature of the reaction mixture with an aqueous solution of alkali hydroxide and the reaction of the obtained 3-methoxycarbonyl-2,6-dimethyl-4-(m-nitrophenyl)-1,4-dihydropyridine-5-car boxylic acid either with N-(2-hydroxyethyl)-N-benzyl-methylamine in the presence or absence of an organic solvent in the presence of N,N'-dicyclohexylcarbodiimide at a temperature of between 25.degree. and 120.degree. C. or with N-(2-haloethyl)-N-benzyl-methylamine in the presence of an inert organic solvent and of a proton acceptor at a temperature of between 25.degree. and 140.degree. C.
    Type: Grant
    Filed: May 14, 1986
    Date of Patent: September 6, 1988
    Assignee: LEK, tovarna farmacevtskih in kemicnih izdelkov, n.sol.o.
    Inventors: Ljubo Antoncic, Iztok Jazbec, Darko Kocjan, Ivana Krivec