Patents by Inventor Ulf A. Kjellberg

Ulf A. Kjellberg 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).

  • Extended release oral dosage form
    Publication number: 20040204482
    Abstract: The present invention relates to an extended release oral dosage form of a pharmaceutically active substance, (R)-3-N,N-dicyclobutylamino-8-fluoro-3,4-dihydro-2H-1-benzopyran-5-carboxamide, in the form of the free base or pharmaceutically acceptable salts and/or hydrates or solvates thereof. Furthermore, the invention relates to an extended release oral dosage form that provides a defined blood concentration profile having no rapid initial rise in blood plasma concentration of said active substance when administered at low dose. The invention further relates to processes for preparing said dosage form, the use of said dosage form and a method of prevention and/or treatment of CNS disorders and related medical disturbances using said dosage form.
    Type: Application
    Filed: February 27, 2004
    Publication date: October 14, 2004
    Inventors: Karin Ellstrom, Ulf Kjellberg, Hakan Nyqvist, Annika Schweighofer, Maritta Temsamani
  • Extended release oral dosage form
    Publication number: 20040197404
    Abstract: The present invention relates to a new extended release oral dosage form of a good soluble pharmaceutically active substance. More particularly, the invention relates to an extended release oral dosage form that provides a defined blood concentration profile having no rapid initial rise in blood plasma concentration of the good soluble active substance when administered at low dose. The invention further relates to processes for preparing said dosage form, the use of said dosage form and a method of prevention and/or treatment of CNS disorders and related medical disturbances using said dosage form.
    Type: Application
    Filed: February 27, 2004
    Publication date: October 7, 2004
    Inventors: Karin Ellstrom, Ulf Kjellberg, Hakan Nyqvist, Anders Ringberg, Annika Schweighofer
  • Process for stabilization of bacampicillin hydrochloride
    Patent number: 4626532
    Abstract: A new process for the stabilization of bacampicillin hydrochloride against degradation by humidity characterized by the incorporation of between 3 to 9% by weight of straight-chain alkanes, alkenes, fatty acids, alcohols, and esters of fatty acids and alcohols with molecular weights between 144 and 350, which may be carried out in one step together with wetmassing for granulation.
    Type: Grant
    Filed: October 29, 1985
    Date of Patent: December 2, 1986
    Assignee: Astra Lakemedel Aktieboag
    Inventors: Ulf A. Kjellberg, Per G. H. Nyqvist, Jan U. Stenhede, Lars B. Stenmark