ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,383, issued on April 7, was assigned to W.R. Grace & Co.-CONN. (Columbia, Md.).

"Silica-based matting formulations and methods of making and using the same" was invented by Feng Gu (Ellicott City, Md.), James Neil Pryor (West Friendship, Md.) and Manoj Koranne (Clarksville, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Improved coating formulations containing silica based matting agents in the form of a blend of low pore volume silica particles and high pore volume silica particles are disclosed. The matting formulations are useful in waterborne coating compositions to provide exceptional properties to a coated substrate. Films resulting from t...