The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 2023
Filed:
Dec. 19, 2018
Applicant:
Essilor International, Charenton-le-Pont, FR;
Inventors:
Assignee:
Essilor International, Charenton-le-Pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 9/02 (2006.01); C08L 31/06 (2006.01); B01J 13/18 (2006.01); B01J 13/22 (2006.01); G02B 1/04 (2006.01); G02C 7/10 (2006.01);
U.S. Cl.
CPC ...
C09K 9/02 (2013.01); B01J 13/18 (2013.01); B01J 13/22 (2013.01); C08L 31/06 (2013.01); G02B 1/041 (2013.01); G02C 7/102 (2013.01); C08L 2207/53 (2013.01); C08L 2310/00 (2013.01); C09K 2211/1018 (2013.01);
Abstract
An ophthalmic lens comprising a transparent polymer matrix and core shell nanoparticles which are dispersed in the transparent polymer matrix, wherein the core of core shell nanoparticles results from polymerization of a composition comprising nanoparticle core precursors and at least one photochromic compound, and the shell of core shell nanoparticles comprises a mineral compound.