Research Frontiers Incorporated is engaged in the development and marketing of technology and devices to control the flow of light. The Company develops and licenses its patented suspended particle device (SPD-Smart) light-control technology to other companies that manufacture and/or market the SPD-Smart chemical emulsion, light-control film made from the chemical emulsion, the light-control panels made by laminating the film, electronics to power end-products incorporating the film, or lamination services for, and the end-products themselves such as smart windows, skylights and sunroofs. It has various companies that, in the aggregate, are licensed to primarily serve five SPD-Smart application areas (aerospace, architectural, automotive, marine and display products) in every country of the world. The Company’s SPD-Smart glass or plastic products applications include automotive, aerospace and marine, architectural, and information displays.