Patents by Inventor Robert Hedenblad

Robert Hedenblad 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).

  • Exercise board
    Patent number: D265411
    Type: Grant
    Filed: February 4, 1980
    Date of Patent: July 13, 1982
    Inventors: Robert Hedenblad, Nils I. Jonsson