Patents by Inventor Ronald D. Madison

Ronald D. Madison 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).

  • Light emitting diode headlamp
    Patent number: 7401960
    Abstract: A light emitting diode headlamp capable of low beam and high beam functions. The light emitting diode headlamp assembly comprises high-flux light emitting diodes, a reflector subassembly, a first and second light transmissive member, and a heat sink.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: July 22, 2008
    Assignee: Truck-Life Co., Inc.
    Inventors: Gregory R. Pond, Philip C. Roller, Chris A. Suckow, Ronald D. Madison, Timothy DiPenti, Todd Kolstee
  • Light emitting diode headlamp
    Patent number: 7070310
    Abstract: A light emitting diode headlamp capable of low beam and high beam functions. The light emitting diode headlamp assembly comprises high-flux light emitting diodes, a reflector subassembly, a first and second light transmissive member, and a heat sink.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: July 4, 2006
    Assignee: Truck-Lite Co., Inc.
    Inventors: Gregory R. Pond, Philip C. Roller, Chris A. Suckow, Ronald D. Madison, Timothy DiPenti, Todd Kolstee
  • Light emitting diode headlamp and headlamp assembly
    Publication number: 20040085779
    Abstract: The present invention is a headlamp and headlamp assembly that utilizes light emitting diodes as a light source. The light emitting diode headlamp and headlamp assembly effectively emanates white light and is capable of low beam and high beam functions. The light emitting diode headlamps comprise high-flux light emitting diodes, a reflector subassembly, and a first and second light transmissive member.
    Type: Application
    Filed: October 1, 2003
    Publication date: May 6, 2004
    Inventors: Gregory R. Pond, Philip C. Roller, Chris A. Suckow, Ronald D. Madison, Timothy DiPenti, Todd Kolstee
  • Light emitting diode license lamp
    Patent number: 5934798
    Abstract: A lamp assembly for illumination of a vehicle license plate includes a substrate, a plurality of light emitting diodes mounted on the substrate, and a lens for directing the light emitted from the light emitting diodes onto the license plate. A housing encases the substrate and the lens. An attachment member fixedly secures the housing to a vehicle displaying the license plate.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: August 10, 1999
    Assignee: Truck-Lite Co., Inc.
    Inventors: Philip C. Roller, Ronald D. Madison