Patents by Inventor Donald G. Emmert

Donald G. Emmert 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).

  • Patent number: D323922
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: February 18, 1992
    Inventor: Donald G. Emmert