Patents by Inventor Zen Pietro

Zen Pietro 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).

  • Vehicle consisting of two distinct and detachable sections
    Patent number: 4770434
    Abstract: The vehicle disclosed offers significant economies from both manufacturer and user standpoints, by virtue of its being embodied in two distinct sections, front and rear, that are joined by way of a detachable coupling located between the swivel sleeve which carries the front fork and the frame which carries the rear wheel, or wheels; in a preferred embodiment, the detachable coupling is of a quick-release type.
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: September 13, 1988
    Inventor: Zen Pietro