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:
Jan. 15, 2019
Filed:
Sep. 16, 2014
Applicant:
Essilor International (Compagnie Generale D'optique), Charenton-le-Pont, FR;
Inventors:
Stuart Aiken, York, GB;
Daniel Luke Crossley, Normanton West Yorkshire, GB;
Christopher David Gabbutt, Preston, GB;
Bernard Mark Heron, Brough, GB;
Claudine Biver, Charenton-le-Pont, FR;
Samuel Archambeau, Charenton-le-Pont, FR;
Fabien Berit-Debat, Charenton-le-Pont, FR;
Assignee:
ESSILOR INTERNATIONAL, Charenton-le-Pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 213/06 (2006.01); C07D 213/22 (2006.01); C07D 213/80 (2006.01); C07D 213/26 (2006.01); C09K 9/02 (2006.01); C07D 213/803 (2006.01); G02C 7/10 (2006.01); G02F 1/15 (2006.01);
U.S. Cl.
CPC ...
C07D 213/22 (2013.01); C07D 213/06 (2013.01); C07D 213/26 (2013.01); C07D 213/80 (2013.01); C07D 213/803 (2013.01); C09K 9/02 (2013.01); G02C 7/101 (2013.01); G02F 1/1521 (2013.01); C09K 2211/1029 (2013.01); G02F 2001/1515 (2013.01);
Abstract
The present invention relates to a group of novel electrochromic materials. More specifically, it relates to electrochromic materials having two-core viologens and the use of these two-core viologens as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.