Patents by Inventor Jon Freier

Jon Freier 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).

  • Patent number: 5094299
    Abstract: Equipment for attachment to a vehicle having a three-point hitch. The disclosure discloses a novel implement, and an interface adapted to be interposed between the implement and the hitch. The implement preferably has at least two different sets of working elements. The implement and the interface are preferably adapted to accommodate 180 degree rotation of the implement with respect to an axis extending between the implement and the interface, whereby either set of working elements can be disposed adjacent the ground or other surface to be worked. Rotation of the implement with respect to the axis is prevented while the implement is being used to work the ground.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: March 10, 1992
    Inventor: Jon Freier