Patents by Inventor Richard A. Frate

Richard A. Frate 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).

  • Portable exercise machine
    Patent number: 5050869
    Abstract: An exercise unit or weight machine which may be mounted to a door frame for use. The device is designed for portability in that the unit may be quickly mounted to the door frame and dismounted therefrom, and is symmetric so as to allow the device to be used on either side of the door frame.
    Type: Grant
    Filed: June 7, 1990
    Date of Patent: September 24, 1991
    Inventor: Richard A. Frate