Patents by Inventor Ond{haeck over (r)}ej Gattnar

Ond{haeck over (r)}ej Gattnar 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 of omeprazole preparation
    Patent number: 6229021
    Abstract: The invention involves a method of preparation of omeprazole by a reaction of 5-methoxy-2-[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methylthio]-1H-benzimidazole with peroxyacetic acid in a two-phase water and chlorinated organic solvent medium, in alkaline pH, subsequent separation of water and organic phases after the reaction and isolation of omeprazole from organic phase.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: May 8, 2001
    Assignee: Slovakofarma, A.S.
    Inventors: Vendel {haeck over (S)}mahovský, Vladimir Oremus, Katarina Heleyová, Pavol Zlatoidský, Ond{haeck over (r)}ej Gattnar, Ivan Varga, Valdemar {haeck over (S)}talmach, Ladislav Je{haeck over (z)}ek