Inventor
CHOPRA ANU
US35 patents
⚠️ This page may combine multiple inventors who share the name “CHOPRA ANU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TRANSITIONS OPTICAL INC
10 patentsUS6113814ASep 5, 2000
Polymerizable polyalkoxylated naphthopyrans
TRANSITIONS OPTICAL INC379 citations99
US7262295B2Aug 28, 2007
Indeno-fused photochromic naphthopyrans, naphthols and photochromic articles
TRANSITIONS OPTICAL INC55 citations95
US7557208B2Jul 7, 2009
Naphthols useful for preparing indeno-fused photochromic naphthopyrans
TRANSITIONS OPTICAL INC21 citations92
US7556751B2Jul 7, 2009
Photochromic materials having electron-withdrawing substituents
TRANSITIONS OPTICAL INC24 citations92
US7527754B2May 5, 2009
Photochromic indeno-fused naphthopyrans
TRANSITIONS OPTICAL INC33 citations92
US7166357B2Jan 23, 2007
Photochromic articles that activate behind ultraviolet radiation blocking transparencies and methods for preparation
TRANSITIONS OPTICAL INC52 citations92
US10493486B2Dec 3, 2019
Method of forming a photochromic segmented multifocal lens
TRANSITIONS OPTICAL INC1 citations55
US9073838B2Jul 7, 2015
Method of making indeno-fused naphthol materials
TRANSITIONS OPTICAL INC0 citations52
US9006427B2Apr 14, 2015
Photochromic materials demonstrating improved fade rates
TRANSITIONS OPTICAL INC0 citations52
US7517982B2Apr 14, 2009
Naphthols useful for preparing indeno-fused photochromic naphthopyrans
TRANSITIONS OPTICAL INC1 citations51
CHOPRA ANU
10 patentsUS8741188B2Jun 3, 2014
Ophthalmic devices comprising photochromic materials having extended pi-conjugated systems
CHOPRA ANU60 citations97
US8158037B2Apr 17, 2012
Photochromic materials having extended pi-conjugated systems and compositions and articles including the same
CHOPRA ANU64 citations97
US8748634B2Jun 10, 2014
Photochromic materials demonstrating improved fade rates
CHOPRA ANU7 citations84
US8815771B2Aug 26, 2014
Mechanochromic coating composition
CHOPRA ANU7 citations83
US8388872B2Mar 5, 2013
Photochromic materials having extended pi-conjugated systems and compositions and articles including the same
CHOPRA ANU9 citations83
US8147725B2Apr 3, 2012
Photochromic materials having extended pi-conjugated systems and compositions and articles including the same
CHOPRA ANU10 citations83
US8535577B2Sep 17, 2013
Photochromic materials that include 6-amino substituted indeno-fused naphthopyrans
CHOPRA ANU3 citations62
US8277699B2Oct 2, 2012
Photochromic materials that include 6-amino substituted indeno-fused naphthopyrans
CHOPRA ANU2 citations62
US8859097B2Oct 14, 2014
Photochromic compounds, compositions and articles
CHOPRA ANU2 citations52
US8765978B2Jul 1, 2014
Method of making indeno-fused naphthol materials
CHOPRA ANU1 citations52
PPG IND OHIO INC
4 patentsUS6348604B1Feb 19, 2002
Photochromic naphthopyrans
PPG IND OHIO INC240 citations98
US6296785B1Oct 2, 2001
Indeno-fused photochromic naphthopyrans
PPG IND OHIO INC349 citations97
US7320826B2Jan 22, 2008
Photochromic articles with reduced temperature dependency and methods for preparation
PPG IND OHIO INC65 citations95
US7465415B2Dec 16, 2008
Photochromic materials derived from ring-opening monomers and photochromic initiators
PPG IND OHIO INC31 citations92
JOHNSON & JOHNSON VISION CARE
2 patentsUS9465234B2Oct 11, 2016
Photochromic materials having extended pi-conjugated systems and compositions and articles including the same
JOHNSON & JOHNSON VISION CARE56 citations97
US9097916B2Aug 4, 2015
Photochromic materials having extended pi-conjugated systems and compositions and articles including the same
JOHNSON & JOHNSON VISION CARE56 citations97