ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,008, issued on July 14, was assigned to Alcon Inc. (Fribourg, Switzerland).
"Method for making UV and HEVL-absorbing ophthalmic lenses" was invented by Frank Chang (Cumming, Ga.), Troy Vernon Holland (Suwanee, Ga.), Houliang Tang (Cumming, Ga.) and Adam K. Sniady (Lilburn, Ga.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is a cost-effective and time-efficient method for producing UV- and HEVL-absorbing silicone hydrogel contact lenses capable of blocking ultra-violet ("UV") radiation and high-energy-violet light (HEVL) with wavelengths from 380 nm to 440 nm, thereby protecting eyes to some extent from damages caused by UV and HEVL...