Patents by Inventor Dave Kohlhoff

Dave Kohlhoff 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).

  • Publication number: 20050107912
    Abstract: In some embodiments of the present invention, a vending machine display apparatus and method includes a controller, a display electrically coupled to the controller and adapted to be coupled to the vending machine in a location externally visible on the vending machine, and a power line coupled to the display and adapted to supply power to the display. The display can be associated with the user-manipulatable control and/or with a product in the vending machine dispensed by operation of the user-manipulatable control. In some embodiments, the display is responsive to the controller by changing graphics and/or text displayed by the display.
    Type: Application
    Filed: December 21, 2004
    Publication date: May 19, 2005
    Inventors: John Martin, Dave Kohlhoff