Patents by Inventor Ronald L. Blankespoor

Ronald L. Blankespoor 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).

  • Electrochemical controlled release drug delivery system
    Patent number: 4585652
    Abstract: A method is disclosed for the controlled delivery of an ionic bioactive chemical into a physiological medium comprising ionically binding the chemical to redox sites on a charged polymer and releasing the bound chemical into the medium by neutralizing the charge on the polymer.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: April 29, 1986
    Assignee: Regents of the University of Minnesota
    Inventors: Larry L. Miller, Ronald L. Blankespoor, Baruch Zinger