Patents by Inventor Randall L. Hartman

Randall L. Hartman 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).

  • LYTE-COM portable visual signalling device
    Patent number: 5202660
    Abstract: A portable visual signalling device consists of a plurality of different colored lights and a plurality of switches in a housing. Each light may correspond to a specific designation. The device is powered by a self contained rechargeable battery and recharging circuitry. A switch can be flipped to activate a colored light and provide a visible message. It does not have to be professionally installed. The device can be moved easily from place to place if needed. One or more lights can be activated by remote control. A buzzer may also be activated with one of the lights.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: April 13, 1993
    Inventor: Randall L. Hartman
  • LYTE-COM
    Patent number: 5103204
    Abstract: A portable visual signalling device consists of a plurality of different colored lights and a plurality of switches in a housing. Each light may correspond to a specific designation. The device is powered by a self contained rechargeable battery and recharging circuitry. A switch can be flipped to activate a colored light and provide a visible message. It does not have to be professionally installed. The device can be moved easily from place to place if needed. One or more lights can be activated by remote control. A buzzer may also be activated with one of the lights.
    Type: Grant
    Filed: August 14, 1989
    Date of Patent: April 7, 1992
    Inventor: Randall L. Hartman