US Patent Issued to Johnson & Johnson Vision Care on Dec. 30 for "Particle surface modification to increase compatibility and stability in hydrogels" (Canadian Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,583, issued on Dec. 30, was assigned to Johnson & Johnson Vision Care Inc. (Jacksonville, Fla.).

"Particle surface modification to increase compatibility and stability in hydrogels" was invented by Frank Gu (Toronto) and Aaron Joshua Clasky (Toronto).

According to the abstract* released by the U.S. Patent & Trademark Office: "A composition for light filtering, the composition comprising a base material; a plurality of metal nanoparticles dispersed in the base material; a stabilizing mechanism disposed to selectively couple with at least a portion of the plurality of metal nanoparticles to enhance stability of at least the portion of the plurality of metal nanoparticles in the bas...