ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,432, issued on March 17, was assigned to SHIN-ETSU CHEMICAL Co. LTD. (Tokyo).

"Organosilicon compound, production method therefor, and curable composition" was invented by Shigeki Yasuda (Annaka, Japan) and Minoru Urata (Suita, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An organosilicon compound represented by formula (1).(R1 is an alkyl, alkenyl, aryl, or acyl group, R2 is an alkyl or aryl group, R3 is a hydrogen atom or a methyl group, A1 is a single bond or an alkylene group, A2, A3, and A4 are each a methylene group or an oxygen atom, with the proviso that at least one of the A2, A3, and A4 moieties is an oxygen atom, and n is an inte...