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:
Feb. 11, 2014
Filed:
Jun. 18, 2008
Applicant:
Ronald Berzon, Saint Petersburg, FL (US);
Inventor:
Ronald Berzon, Saint Petersburg, FL (US);
Assignee:
Essilor International (Compagnie Generale d'Optique), Charenton-le-Pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 5/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and coating used to prepare a photochromically-enabled bifocal ophthalmic lens. The coating is a high adhesive strength acrylate-based coating that contains a small quantity of a polycarbonate-based TPU. The coating is applied to produce an intermediate imbibable bifocal surface. A photochromic solution is subsequently imbibed by contact with the bifocal surface.