Patents by Inventor James Lee Holtorf

James Lee Holtorf 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: 6542354
    Abstract: A compact device and method for communication and entertainment needs that include having interchangeable user-interfaces and combining various functions performed by different keypads and units into a single pad or unit. The device includes circuitry with transceiver capabilities, a chassis, a display, at least two Freestyle User-Interfaces (FUI) secured to the chassis that can rotate from an open position to a closed position, and a user-interface that provides the user with navigational control and image conversion. The method of interchanging at least two FUIs includes providing a chassis for securely holding the circuitry, rotatably securing the user-interfaces to the chassis, coupling the user-interfaces to the circuitry, and removably securing opposite ends of an elastic piece to each of the user-interfaces.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: April 1, 2003
    Assignee: Nokia Mobile Phones, Ltd.
    Inventors: James Lee Holtorf, Andrew Julian Gartrell, Alastair Stuart Curtis, Tanja Finkbeiner