Patents by Inventor Robert M. Hanna

Robert M. Hanna 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).

  • Trash receptacle
    Patent number: D306928
    Type: Grant
    Filed: January 22, 1987
    Date of Patent: March 27, 1990
    Assignee: Hanna/Olin, Ltd.
    Inventor: Robert M. Hanna
  • Bench
    Patent number: D314677
    Type: Grant
    Filed: January 22, 1987
    Date of Patent: February 19, 1991
    Assignee: Hanna/Olin, Ltd.
    Inventor: Robert M. Hanna