ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,379,611, issued on Aug. 5, was assigned to Alcon Inc. (Fribourg, Switzerland).

"Diffractive contact lenses" was invented by Zahra Bassampour (Alpharetta, Ga.), Chandana Kolluru (Suwanee, Ga.), Steve Yun Zhang (Sugar Hill, Ga.), Adam K. Sniady (Lilburn, Ga.), Thomas M. Moy (Cumming, Ga.), Frank Chang (Cumming, Ga.), David Borja (Suwanee, Ga.), Joseph Michael Lindacher (Suwanee, Ga.) and Ying Pi (Suwanee, Ga.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a delamination-resistant embedded silicone hydrogel contact lens having an insert that is embedded in a silicone hydrogel bulk material. The insert is made of a crosslinked polymeri...