Patents by Inventor E. Doyle Smith

E. Doyle Smith 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).

  • Concrete block
    Patent number: D295789
    Type: Grant
    Filed: July 10, 1985
    Date of Patent: May 17, 1988
    Inventor: E. Doyle Smith