Patents by Inventor Carol A. Thielen

Carol A. Thielen 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).

  • Herbal repellent composition
    Patent number: 4671960
    Abstract: A natural flea repellent herbal composition using the dry, finely chopped solids of pennyroyal, eucalyptus, and camomile with a small amount of oil of pennyroyal, eucalyptus, and citronella for increased effect.A method for production of a material receptical used as a pet collar.An apparatus for the insertion of the natural flea repellent herbal composition within the material receptical.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: June 9, 1987
    Inventors: Peter Thielen, Carol A. Thielen