Patents by Inventor Martin Wikberg

Martin Wikberg 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: 20080095853
    Abstract: An oral solid pharmaceutical dosage form comprising an acid sensitive proton pump inhibitor (PPI) as single active drug, releasing the PPI in two separate pulses, one immediate and one delayed. The PPI is formulated into a core material in the form of pellets, which are coated i.a. with a combination of a delayed release modifying layer and a lag time controlling layer. The pellets are further provided with an enteric coating layer. The application also relates to processes for preparing the dosage forms as well as their use in the treatment of gastrointestinal diseases.
    Type: Application
    Filed: November 2, 2005
    Publication date: April 24, 2008
    Inventors: Niclas Clemmensen, Jan-Erik Lofroth, Katrin Walter, Peter Wang, Martin Wikberg
  • Publication number: 20080003281
    Abstract: An oral solid pharmaceutical dosage form comprising an acid sensitive proton pump inhibitor (PPI) as single active drug, releasing the PPI in two separate pulses, one immediate and one delayed. The PPI is formulated into a core material in the form of tablets, which are coated i.a. with a combination of a delay release modifying layer and a lag time controlling layer that together achieves beneficial release properties. The tablets are further provided with an enteric coating layer. The application also relates to processes for preparing the dosage forms as well as their use in the treatment of gastrointestinal diseases.
    Type: Application
    Filed: November 2, 2005
    Publication date: January 3, 2008
    Applicant: ASTRAZENECA AB
    Inventors: Niclas Clemmensen, Jan-Erik Lofroth, Henrik Sahlen, Katrin Walter, Peter Wang, Martin Wikberg
  • Patent number: 6911217
    Abstract: A controlled release bead comprises: (i) a core unit of a substantially water-soluble or water-swellable inert material; (ii) a first layer on the core unit of a substantially water-insoluble polymer; (iii) a second layer covering the first layer and containing an active ingredient; and (iv) a third layer of polymer on the second layer effective for controlled release of the active ingredient, wherein the first layer is adapted to control water penetration into the core. A method of producing the controlled release bead is also disclosed.
    Type: Grant
    Filed: November 11, 1999
    Date of Patent: June 28, 2005
    Assignee: Pharmacia AB
    Inventors: Torkel Gren, Anders Ringberg, Martin Wikberg, Randy J. Wald
  • Patent number: 6770295
    Abstract: The present invention is drawn to a method of treating an unstable or overactive urinary bladder by treating the patient with tolterodine or a tolterodine-related compound, or pharmaceutically acceptable salt thereof, with a controlled release formulation that maintains a substantially constant serum level of the active moiety or moieties for at least 24 hours. The present invention is further drawn to a formulation for the method.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: August 3, 2004
    Assignee: Pharmacia AB
    Inventors: Bo Kreilgård, Lene Orup Jacobsen, Ulla Hoeck, Helle Kristensen, Torkel Gren, Lisbeth Nilvebrant, Anders Ringberg, Martin Wikberg, Bengt Hallén, Birgitta Olsson, Jan Strömbom
  • Patent number: 6630162
    Abstract: The invention relates to a pharmaceutical formulation containing tolterodine or a tolterodine-related compound, or a pharmacologically acceptable salt thereof, as active ingredient, in which the formulation exhibits a controlled in vitro release of the active ingredient in phosphate buffer at pH 6.8 of not less than about 80% after 18 hours, and after oral administration to a patient is capable of maintaining a substantially constant serum level of the active moiety or moieties for 24 hours. The invention also relates to the use of the pharmaceutical formulation for treating overactive bladder and gastrointestinal disorders.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: October 7, 2003
    Assignee: Pharmacia AB
    Inventors: Lisbeth Nilvebrant, Bengt Hallen, Birgitta Olsson, Jan Strombom, Torkek Gren, Anders Ringberg, Martin Wikberg