Patents by Inventor Ruth L. Doss

Ruth L. Doss 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: D323029
    Type: Grant
    Filed: January 14, 1988
    Date of Patent: January 7, 1992
    Inventor: Ruth L. Doss