Patents by Inventor Drew G. Narayan

Drew G. Narayan 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).

  • Roadway and vehicular-mounted reflectors incorporating a field of discrete crystal reflectors and retroreflectors
    Patent number: 7438968
    Abstract: Roadway and vehicular-mounted safety reflectors include a reflective field that incorporates a plurality of discrete crystals that internally reflect light and return the light in a desired directional pattern determined by the internal reflection characteristics and orientation of the crystals. The directional pattern is chosen to optimize the visibility and functionality of the reflector.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: October 21, 2008
    Assignee: Next Safety, Inc.
    Inventors: Jack Hebrank, Charles Eric Hunter, Michael A. Wiener, Drew G. Narayan, Laurie E. McNeil
  • Emissive highway markers
    Patent number: 7273328
    Abstract: A highway marker and vehicle mounted detection system in which the highway marker includes LEDs of different colors that can be selected under different conditions, and non-visible light LEDs for transmitting information to passing vehicles and between highway markers.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: September 25, 2007
    Assignee: Next Safety, Inc.
    Inventors: Charles Eric Hunter, Drew G. Narayan
  • Emissive highway markers
    Publication number: 20040175232
    Abstract: A highway marker comprising an emissive device positioned on a highway, wherein said emissive device emits electromagnetic radiation.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 9, 2004
    Inventors: Charles Eric Hunter, Drew G. Narayan
  • Biohazard treatment systems
    Publication number: 20030170151
    Abstract: Systems and methods for exposing fluids and other materials that may contain biohazards to ultraviolet radiation are provided. One system for exposing a fluid includes a baffled conduit for conveying the fluid so that the fluid flow and its exposure to ultraviolet radiation is rendered more uniform. Other systems include feedback for determining when to replace light sources and filters and to ensure proper biodosimetry. Additional methods and systems for exposing fluids and other materials that may contain biohazards are also provided.
    Type: Application
    Filed: September 30, 2002
    Publication date: September 11, 2003
    Inventors: Charles Eric Hunter, John H. Hebrank, Laurie E. McNeil, Drew G. Narayan, Michael A. Wiener