ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,265, issued on Aug. 5, was assigned to ENTEGRIS INC. (Billerica, Mass.).
"Process for preparing organotin compounds" was invented by David Kuiper (Brookfield, Conn.), David M. Ermert (Danbury, Conn.) and Thomas Coyne (Stormville, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a facile process for preparing certain organotin compounds having alkyl and alkylamino substituents. The process provides organotin precursor compounds, for example tris(dimethylamido)isopropyl tin, in a highly pure form. As such, the products of the process are particularly useful in the deposition of high-purity tin oxide films in, for example, extreme ultravi...