Patents by Inventor Donald Sidney Hanson

Donald Sidney Hanson 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).

  • Optical transmission system having hollow metal light channel
    Publication number: 20040114898
    Abstract: An optical signal transmission system comprises a metal conduit for transmitting optical signals between an optical signal transmitter and an optical signal receiver. The metal conduit is preferably formed of metal tubing and defines a hollow light channel containing air or other gas through which light propagates. In one aspect, metal conduits are interconnected by a polymeric coupling that transmits light between hollow light channels without loss due to misalignment or gaps between the channels.
    Type: Application
    Filed: December 16, 2002
    Publication date: June 17, 2004
    Inventors: Donald Sidney Hanson, Harvinder Singh, Bernard A. Meyer