Patents by Inventor Robert Staal

Robert Staal 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 ramp
    Patent number: D749683
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: February 16, 2016
    Inventor: Robert Staal