Patents by Inventor Hans G. Schroeder

Hans G. Schroeder 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).

  • Porous microspheres for drug delivery and methods for making same
    Patent number: 4818542
    Abstract: Controlled release drug delivery systems comprised of spherical microporous polymeric network of interconnecting channels containing pore incorporated drugs or other agents wherein the drugs or agents are confined within the pore channel are described. Also disclosed are processing parameters in connection with the novel method of the invention for obtaining drug delivery systems especially suited for parenteral as well as oral administration.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: April 4, 1989
    Assignee: The University of Kentucky Research Foundation
    Inventors: Patrick P. DeLuca, Motoko Kanke, Toyomi Sato, Hans G. Schroeder