Patents by Inventor Ulf I. Ulmsten

Ulf I. Ulmsten 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).

  • Medical preparation containing prostaglandin
    Patent number: 4352790
    Abstract: A stable prostaglandin containing medical preparation in the form of substantially dry particles and intended for intravaginal and/or intracervical application. The preparation comprises prostaglandin absorbed and/or adsorbed in a crosslinked hydroxyl group containing polymer which is insoluble in water but has capability of swelling in water containing liquids to form a gel.
    Type: Grant
    Filed: January 16, 1980
    Date of Patent: October 5, 1982
    Assignee: Perstorp AB
    Inventors: Olof J. A. Johansson, Ulf I. Ulmsten