Patents by Inventor Lanny E. Ludwick

Lanny E. Ludwick 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: 5738362
    Abstract: A step holding element is insertable in a receiver-type trailer hitch on a vehicle and includes a mounting bar for securing into the trailer hitch receiver, and a step rotatably secured to the mounting bar for movement between open and closed positions. The mounting bar has an opening formed with a post mounted therein and the post has two ends, one of which is secured to the step and the other of which has a locking element secured thereto which is normally held in contact with the top surface and the side surfaces of the mounting bar. To operate the step between open and closed positions the step must be first pushed upwardly, away from the mounting bar and the ground on which the vehicle is resting, so that the locking element will be moved out of contact with the mounting bar to enable the step to be rotated between retracted and useable positions, with respect to the rear of the vehicle on which it is mounted.
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: April 14, 1998
    Inventor: Lanny E. Ludwick
  • Patent number: 4522381
    Abstract: A rigid one piece two compartmented container to provide an easily transportable and sanitary diaper changing surface for infants. The device has a one piece rectangular flat based tray having two adjoining sections, one section has angled sides and a flat base surface to hold an infant during the diaper changing process and the other section is a compartment to hold the diaper changing accessories. A non-porous vinyl covered foam rubber pad fits over the flat base of the diaper changing surface. A safety strap with conventional adjusting hardware and a simple attaching device is provided to safely secure the infant on the diaper changing surface.
    Type: Grant
    Filed: June 17, 1983
    Date of Patent: June 11, 1985
    Inventor: Lanny E. Ludwick