ALEXANDRIA, Va., March 24 -- United States Patent no. 12,582,516, issued on March 24, was assigned to HANITA LENSES LTD. (Israel).

"Multifocal intraocular lens" was invented by Mickael Attia (Rehovot, Israel), Alexander Brodsky (Petah Tikva, Israel), Natan Kaplan (Lod, Israel) and Israel Grossinger (Karmei Yossef, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multifocal IOL including at least one diffractive surface including a plurality of discrete, adjacent, diffractive, concentric rings, having a radial phase profile cross-section with a near-symmetrical diffractive surface topography, and an odd number, greater than three, of diffractive orders and an asymmetrical distribution of energy flux ov...