Patents by Inventor Douglas Koppy

Douglas Koppy 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).

  • Supporting and elevating device for a snowmobile
    Patent number: 5421611
    Abstract: A self positioning elevating and supporting device carried at the rearward end portion of a snowmobile which upon being released from an inoperative position self positions itself to elevate and support in elevated position the rearward end portion of a snowmobile raising the underlying track arrangement thereof above the supporting ground surface.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: June 6, 1995
    Inventors: Michael Peterson, Douglas Koppy, Michael Anderson