US Patent Issued to COLOURSMITH LABS on April 7 for "Composite particle and use thereof in optical filtration" (Canadian Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,356, issued on April 7, was assigned to COLOURSMITH LABS INC. (Halifax, Canada).

"Composite particle and use thereof in optical filtration" was invented by William Curtis (Halifax, Canada), Morrgan Payne (Halifax, Canada), Raymond Bennett (Halifax, Canada) and Gabrielle Tina Masone (Halifax, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a composite particle comprising a dye, an amphiphilic block copolymer and a free radical scavenger, and the use thereof in the preparation of ophthalmic lenses and/or thin-film coating such as sol-gel coating on ophthalmic lenses. The present disclosure also relates to method...