IsoRay, a Richland, Washington based company, was founded in 1998 to commercialize proprietary isotope and manufacturing technology.IsoRay MedicalTM was founded in Richland, Washington in 1998, to develop, manufacture, and market isotopes for use in the medical treatment of various malignant diseases. The company’s founders included many recognized experts in the medical isotope field. Lane A. Bray, chief chemist of IsoRay MedicalTM, who developed the patented process for economically separating and purifying Cesium-131, was one of them.