Patents by Inventor Lars, Johan, , Hjartstam

Lars, Johan, , Hjartstam 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).

  • Film coating
    Publication number: 20050256255
    Abstract: The present invention provides a novel film coating dispersion obtainable by the polymerization of the following monomers in water: acrylic acid or an ester thereof in the range 40 to 80% by weight; methacrylic acid or an ester thereof in the range 20 to 60% by weight; and a polymerizable surfactant in the range 0.01 to 9% by weight. The dispersion is suitable for coating pharmaceutical formulations to provide controlled release of the active ingredient.
    Type: Application
    Filed: April 9, 2003
    Publication date: November 17, 2005
    Inventors: Ola Karlsson, Lars Johan Hjartstam, Staffan Schantz
  • New film coating
    Publication number: 20050089574
    Abstract: A film coating composition suitable for use in coating pharmaceutical formulations to provide modified release comprising a dispersion which includes: a) an acrylic polymer, b) a vinyl acetate polymer, and c) a water-containing liquid. The film coat is useful for the achievement of modified release from pharmaceutical formulations such as tablets, pellets, etc.
    Type: Application
    Filed: September 16, 2004
    Publication date: April 28, 2005
    Inventors: Jan-Erik Lofroth, Staffan Schantz, Anders Welin, Lars, Johan, , Hjartstam