ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,700,563, issued on Aug. 4, was assigned to FEI Co. (Hillsboro, Ore.).

"Electrostatic mirror chromatic aberration correctors" was invented by Alexander Henstra (Eindhoven, Netherlands) and Ali Mohammadi-Gheidari (Eindhoven, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "Electrostatic mirror chromatic aberration (Cc) correctors, according to the present disclosure, comprise an electrostatic electron mirror that itself comprises a multipole. The electrostatic electron mirror is positioned within the corrector such that, when the corrector is in use, an electron beam passing through the corrector is not incident on the electrostatic electron mirr...