Patents by Inventor Andrew Sijan

Andrew Sijan 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).

  • Conveyance window with suppressed reflections
    Patent number: 5376443
    Abstract: A vehicle window includes a glass ply with a layer of thermoset polyurethane over the outer face of the glass which inhibits Restrahlen Band reflection at 8-12 microns from the glass. The polyurethane layer may include an inner layer portion of relatively hard polyurethane and an outer layer of relatively soft polyurethane.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: December 27, 1994
    Assignee: Pilkington Aerospace Limited
    Inventors: Andrew Sijan, Christopher W. G. Hall