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. 11, 2026
Filed:
Mar. 30, 2021
Transitions Optical, Ltd., Tuam, IE;
Wenjing Xiao, Murrysville, PA (US);
Beon-Kyu Kim, Gibsonia, PA (US);
Robert W. Walters, Murrysville, PA (US);
Transitions Optical, Ltd., Tuam, IE;
Abstract
The present invention relates to indenonaphthopyran compounds represented by the following Formula (I). With reference to Formula (I), Rthrough Rare as described in the specification. There is provided that the indenonaphthopyran compound represented by Formula (I) includes: (i) at least one trialkylsilyl group; and (ii) at least one ethylenically unsaturated radically polymerizable group selected from vinylphenyl, acrylate, methacrylate, acrylamide, or methacrylamide. The present invention also relates to photochromic compositions and photochromic articles that include indenonaphthopyran compounds represented by Formula (I).