SOTK vs REFR Comparison

Sono-Tek Corp design and manufacture of ultrasonic coating systems for applying precise, thin film coatings to add functional properties, protect or strengthen surfaces on parts and components for the microelectronics/electronics, alternative energy, medical, industrial and emerging research & development/other markets. The company design and manufacture custom-engineered ultrasonic coating systems incorporating its patented technology, in combination with strong applications engineering knowledge, to assist its customers in achieving their desired coating solutions.

Research Frontiers Inc 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 light-control technology to other companies that manufacture and market the SPD-Smart chemical emulsion, the 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. The company's revenue source comes from the licensing of technology.