Patents by Inventor Gordon F. Sweeley

Gordon F. Sweeley 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).

  • Iontophoretic treatment apparatus
    Patent number: 4340047
    Abstract: A method and apparatus for applying iontophoretic treatment to a living body is provided by which a unidirectional treatment current is periodically interrupted by a relatively short pulse of current in the opposite direction in order to prevent the formation of undesirable vesicles and bulla in the skin being treated. The apparatus and method are arranged to impose the treatment current gradually at the beginning of each treatment.
    Type: Grant
    Filed: February 8, 1980
    Date of Patent: July 20, 1982
    Assignee: Robert Tapper
    Inventors: Robert Tapper, Gordon F. Sweeley