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:
May. 12, 2015
Filed:
Mar. 11, 2013
Applicant:
Transitions Optical, Inc., Pinellas Park, FL (US);
Inventors:
Darrin R. Dabideen, Pittsburgh, PA (US);
Meng He, Murrysville, PA (US);
Anil Kumar, Murrysville, PA (US);
Assignee:
Transitions Optical, Inc., Pinellas Park, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 493/04 (2006.01); G02B 1/04 (2006.01); G03C 1/73 (2006.01);
U.S. Cl.
CPC ...
G02B 1/04 (2013.01); C07D 493/04 (2013.01); G03C 1/73 (2013.01);
Abstract
The present invention relates to naphthopyran compounds that include at least one compound represented by the following Formulas (I), (II), and (III): With reference to Formulas (I), (II), and (III), there is the proviso that: (i) at least one Ris a group L; and/or (ii) B and/or B' is substituted with at least one group L. The group L can be described as a lengthening group. The present invention also relates to photochromic-dichroic naphthopyran compounds and photochromic-dichroic articles containing such compounds.