Patents by Inventor Hana Petrickova

Hana Petrickova 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).

  • METHOD FOR ISOLATION AND PURIFICATION OF MONTELUKAST
    Publication number: 20100267958
    Abstract: A method of isolation of Montelukast of formula I from reaction mixtures, comprising conversion of the crude sub-stance to well-crystallizing salts with primary amines in the environment of at least one organic solvent and acetonitrile, followed by re-crystallization of these salts with simultaneous removal of chemical impurities and use of the chemically pure salts of Montelukast with primary amines for direct transformation to the pharmaceutically useful amorphous form of Montelukast sodium of formula II.
    Type: Application
    Filed: July 8, 2008
    Publication date: October 21, 2010
    Inventors: Ales Halama, Josef Jirman, Hana Petrickova
  • METHOD FOR THE PREPARATION OF ZOLMITRIPTAN
    Publication number: 20100145064
    Abstract: A method for the preparation of zolmitriptan or its pharmaceutically acceptable salts, comprising isolation of a crystalline salt of zolmitriptan, its optional re-purification and conversion to the substance of formula (III). Zolmitriptan hydrochloride in the crystalline state.
    Type: Application
    Filed: February 25, 2008
    Publication date: June 10, 2010
    Inventors: Michal Voslar, Monika Zatopkova, Hana Petrickova, Lucie Tisovska
  • Amorphous forms of risedronate monosodium
    Patent number: 7618953
    Abstract: The monosodium salt of 3-pyridyl-1-hydroxyethylidene-1,1-bisphosphonic acid in new amorphous forms, methods of preparation and a pharmaceutical formulation.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: November 17, 2009
    Assignee: Zentiva, a.s.
    Inventors: Jindrich Richter, Josef Jirman, Hana Petrickova