ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,859, issued on Feb. 24, was assigned to Essilor International (Charenton-le-Pont, France).

"Method for supplying a molding device with polymerizable mixture" was invented by Herve Gentils (Charenton-le-pont, France) and Eric Veque (Charenton-le-pont, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for supplying a polymerizable mixture to at least one molding device, said method comprising the following steps: a) providing a tank containing the polymerizable mixture (box E1), b) reaching a set value of pressure (Ps) in the tank, smaller than the ambient pressure (box E2), c) continuously maintaining the pressur...