Patents by Inventor Janez Kerc

Janez Kerc 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).

  • Publication number: 20060121106
    Abstract: The present invention relates to a novel therapeutic system suitable for one or twice daily administration of amoxicillin and clavulanic acid. One part of the dosage is provided by at least one immediate release amoxicillin/clavulanic acid pharmaceutical composition, and the other part of the dosage is provided by at least one delayed and sustained release gastroretentive amoxicillin pharmaceutical composition.
    Type: Application
    Filed: February 20, 2004
    Publication date: June 8, 2006
    Inventors: Janez Kerc, Jerneja Opara, Maja Jenko Osel
  • Publication number: 20060093680
    Abstract: The present invention relates to coated particles and pharmaceutical dosage forms comprising the active substances sensitive to environmental influences. The coating of the present invention provides stability and protection of the active substance to environmental influences and in particular from oxidation and/or environmental humidity by coating.
    Type: Application
    Filed: February 11, 2004
    Publication date: May 4, 2006
    Inventors: Vlasta Humar, Mateja Burjak, Rok Grahek, Mateja Salobir, Janez Kerc, Klemen Kocevar
  • Publication number: 20050042290
    Abstract: A solid controlled release pharmaceutical formulation for once daily administration comprises a core comprising venlafaxine, polyvinylpyrrolidone, a low viscosity hydrophilic polymer and a high viscosity hydrophilic polymer, and a polymeric coating comprising a water high permeable polymer, and a water low permeable polymer. The invention further relates to a process for the preparation of a solid controlled release pharmaceutical formulation comprising the steps of dissolving venlafaxine and ployvinylpyrrolidone in an organic solvent, applying the resulting solution onto low viscosity polymer, homogeneously mixing the obtained granulate with a high viscosity polymer, and compressing the granulate to obtain a core which is then coated with a polymeric coating comprising a water high permeable polymer and a water low permeable polymer.
    Type: Application
    Filed: March 1, 2002
    Publication date: February 24, 2005
    Inventors: Janez Kerc, Vlasta Humar
  • Patent number: 6806290
    Abstract: Lovastatin, pravastatin, simvastatin, mevastatin, atorvastatin, and derivatives and analogs thereof are known as HMG-CoA reductase inhibitors and are used as antihypercholesterolemic agents. The majority of them are produced by fermentation using microorganisms of different species identified as species belonging to Aspergillus, Monascus, Nocardia, Amycolatopsis, Mucor or Penicillium genus, and some are obtained by treating the fermentation products using the methods of chemical synthesis or they are the products of total chemical synthesis. The aforementioned active substances may be destabilized by the environmental factors, their degradation may also be accelerated by interactions with other pharmaceutical ingredients, such as fillers, binders, lubricants, glidants and disintegrating agents, therefore the pharmaceutical ingredients and the process for preparation of the pharmaceutical formulation should be meticulously chosen to avoid the aforementioned undesired interactions and reactions.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: October 19, 2004
    Assignee: LEK Pharmaceuticals d.d.
    Inventors: Zlatko Pflaum, Janez Kerc
  • Publication number: 20040131669
    Abstract: The present invention relates to a novel modified release pharmaceutical composition comprising the coated capsule body, coated or uncoated capsule cap, at least one tablet and granulate comprising active substance.
    Type: Application
    Filed: December 18, 2003
    Publication date: July 8, 2004
    Inventor: Janez Kerc
  • Publication number: 20040072894
    Abstract: Lovastatin, pravastatin, simvastatin, mevastatin, atorvastatin, and derivatives and analogs thereof are known as HMG-CoA reductase inhibitors and are used as antihypercholesterolemic agents. The majority of them are produced by fermentation using microorganisms of different species identified as species belonging to Aspergillus, Monascus, Nocardia, Amycolatopsis, Mucor or Penicillium genus, and some are obtained by treating the fermentation products using the methods of chemical synthesis or they are the products of total chemical synthesis.
    Type: Application
    Filed: September 4, 2003
    Publication date: April 15, 2004
    Inventor: Janez Kerc
  • Patent number: 6680341
    Abstract: Atorvastatin and pravastatin may be destabilized by the environmental factors, their degradation may also be accelerated by interactions with other pharmaceutical ingredients, such as fillers, binders, lubricants, glidants and disintegrating agents, therefore the pharmaceutical ingredients and the process for preparation of the pharmaceutical formulation should be meticulously chosen to avoid the aforementioned undesired interactions and reactions. The present invention relates to a stable solid pharmaceutical formulation for the treatment of hypercholesterolemia and hyperlipidemia. More precisely, the present invention relates to the new stable solid pharmaceutical formulation containing as an active ingredient, an HMG-CoA reductase inhibitor, such as atorvastatin and pravastatin and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: January 20, 2004
    Assignee: LEK Pharmaceuticals d.d.
    Inventor: Janez Kerc
  • Publication number: 20030109584
    Abstract: Lovastatin, pravastatin, simvastatin, mevastatin, atorvastatin, and derivatives and analogs thereof are known as HMG-CoA reductase inhibitors and are used as antihypercholesterolemic agents. The majority of them are produced by fermentation using microorganisms of different species identified as species belonging to Aspergillus, Monascus, Nocardia, Amycolatopsis, Mucor or Penicillium genus, and some are obtained by treating the fermentation products using the methods of chemical synthesis or they are the products of total chemical synthesis. The aforementioned active substances may be destabilized by the environmental factors, their degradation may also be accelerated by interactions with other pharmaceutical ingredients, such as fillers, binders, lubricants, glidants and disintegrating agents, therefore the pharmaceutical ingredients and the process for preparation of the pharmaceutical formulation should be meticulously chosen to avoid the aforementioned undesired interactions and reactions.
    Type: Application
    Filed: November 15, 2002
    Publication date: June 12, 2003
    Inventors: Zlatko Pflaum, Janez Kerc
  • Patent number: 6042847
    Abstract: Described is a novel three-phase pharmaceutical form with constant and controlled release of an amorphous active ingredient stabilized with polymers for a single daily peroral application, which is especially suitable for active ingredients existing in amorphous form or in one or more polymorphous forms, which exhibit poor solubility in crystal form depending on the polymorphous form, particle size and the specific surface area of the active ingredient. The active ingredient can be used in its amorphous or any polymorphous form, which in the process of the preparation of the three-phase pharmaceutical form according to the invention is converted into the amorphous form. The three-phase pharmaceutical form with constant and controlled release of an amorphous active ingredient for a single daily peroral application contains a core consisting of a first and a second phase and a coating representing the third phase.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: March 28, 2000
    Assignee: LEK, Tovarna farmacevtskih in Kemicnih Izdelkov, d.d.
    Inventors: Janez Kerc, Ljubomira Barbara Rebic, Bojan Kofler