US Patent Issued to Johnson & Johnson Vision Care on Dec. 16 for "Using particles for light filtering" (Canadian Inventors)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,590, issued on Dec. 16, was assigned to Johnson & Johnson Vision Care Inc. (Jacksonville, Fla.).

"Using particles for light filtering" was invented by Frank Gu (Toronto), Aaron Joshua Clasky (Toronto) and Paul Chen (Toronto).

According to the abstract* released by the U.S. Patent & Trademark Office: "A composition for light filtering, the composition comprising: a base material comprising a HEMA-based material; a plurality of metal nanoparticles dispersed in the base material, wherein the plurality of metal nanoparticles exhibit a peak light absorption value in the range of about 500 nm to about 600 nm; an anchoring mechanism dispersed in the base material, the anchoring mechanis...