Patents by Inventor Robert H. Milligan

Robert H. Milligan 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).

  • Compartmentalized storage unit
    Patent number: D242677
    Type: Grant
    Filed: March 27, 1975
    Date of Patent: December 14, 1976
    Inventor: Robert H. Milligan
  • Soil containing medallion
    Patent number: D244366
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: May 17, 1977
    Inventor: Robert H. Milligan