Patents by Inventor Kim David Vollendorf

Kim David Vollendorf 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).

  • Personal communications unit
    Patent number: 6041243
    Abstract: A personal communications unit facilitates both wired and wireless communications with a wired intercom. The personal communications unit has a headset, an intercom connection cable placeable in electrical communication with the wired headset and also placeable in electrical communication with the wired intercom, a radio transceiver which is placeable in electrical communication with the headset, and a switching circuit which is configured to place the intercom connection cable in electrical communication with the headset when the intercom connection cable is in electrical communication with the wired intercom and which is configured to place the radio transceiver in electrical communication with the headset when the intercom connection cable is not in electrical communication with the headset.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: March 21, 2000
    Assignee: Northrop Grumman Corporation
    Inventors: Steven Frederic Davidson, Kim David Vollendorf, Michael Frank DiCicco, Stuart John Collar, Jeffrey Jay Stone