Research Frontiers Incorporated, together with other subsidiary, engages in the development and marketing of technology and devices to control the flow of light worldwide. It develops and licenses suspended particle device (SPD-Smart) light-control technology to companies that manufacture and market the SPD-Smart chemical emulsion, light-control film made from the chemical emulsion, the light-control panels made by laminating the film, and electronics to power end-products incorporating the film, as well as lamination services for and the end-products, such as windows, skylights, and sunroofs. The company's SPD-Smart light-control technology is used in various product applications, including windows, sunshades, skylights, and interior partitions for homes and buildings; automotive windows, sunroofs, sun-visors, sunshades, rear-view mirrors, instrument panels, and navigation systems; aircraft windows; museum display panels, and eyewear products; and flat panel displays for electronic products. It serves architectural, automotive, marine, and aerospace and appliance applications. The company was incorporated in 1965 and is headquartered in Woodbury, New York.

Period	Debt/Equity
2015-12-31	0.05
2016-12-31	0.08
2017-12-31	0.12
2018-12-31	0.31
2019-12-31	0.17
2020-12-31	0.16
2021-12-31	0.20
2022-12-31	0.12
2023-12-31	0.09
2024-12-31	0.55

	A	B	C	D
1	Symbol	Price	Change	Volume
2	REFR	$0.96	-3.96%	0.03M
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