ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,449, issued on March 25, was assigned to Agency for Science, Technology and Research (Singapore).

"Photocurable compositions having variable viscosities" was invented by Fuke Wang (Singapore), Chaobin He (Singapore), Fei Wang (Singapore) and Yi Ting Chong (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "Photocurable compositions comprising 20-90% by weight of a polymerizable core resin; 20-90% by weight of a diluent resin miscible with said core resin; and at least about 1% by weight of at least one rheology modifier which is distinct from said diluent resin. Rheology modifiers of the present disclosure include compounds which may form cov...