Invention Grant
- Patent Title: Electrochromic compounds and optical articles containing them
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Application No.: US16471050Application Date: 2018-01-04
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Publication No.: US10730855B2Publication Date: 2020-08-04
- Inventor: Claudine Biver , Fabien Berit-Debat , Samuel Archambeau , Christopher Gabbutt , Stuart Aiken , Bernard Mark Heron , Thomas David Broadbent
- Applicant: Essilor International
- Applicant Address: FR Charenton-Le-Pont
- Assignee: Essilor International
- Current Assignee: Essilor International
- Current Assignee Address: FR Charenton-Le-Pont
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2dcb3575
- International Application: PCT/EP2018/050218 WO 20180104
- International Announcement: WO2018/127540 WO 20180712
- Main IPC: C07D401/14
- IPC: C07D401/14 ; C09K9/02
Abstract:
The present invention relates to a group of novel electrochromic compounds. More specifically, it relates to electrochromic compounds comprising one or several pyridinium rings and the use of these compounds as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.
Public/Granted literature
- US20190315718A1 ELECTROCHROMIC COMPOUNDS AND OPTICAL ARTICLES CONTAINING THEM Public/Granted day:2019-10-17
Information query
