ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,950, issued on June 17, was assigned to UT-Battelle LLC (Oak Ridge, Tenn.).
"Methods for producing hollow silica particles" was invented by Jaswinder K. Sharma (Oak Ridge, Tenn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing hollow silica particles, comprising: (i) producing a first batch of core-shell particles in which each core-shell particle contains a sacrificial core coated with a silica shell, by adding a tetrahydrocarbyl orthosilicate and hydroxide base to a suspension of sacrificial core particles in a solvent-water mixture, wherein the resulting suspension has a pH of at least 10, and wherein the foregoing steps resu...