Inventor
BLACKBURN FORREST R
US30 patents
⚠️ This page may combine multiple inventors who share the name “BLACKBURN FORREST R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TRANSITIONS OPTICAL INC
12 patentsUS7256921B2Aug 14, 2007
Polarizing, photochromic devices and methods of making the same
TRANSITIONS OPTICAL INC146 citations99
US7505189B2Mar 17, 2009
Polarizing, photochromic devices and methods of making the same
TRANSITIONS OPTICAL INC15 citations92
US7911676B2Mar 22, 2011
Photochromic optical articles prepared with reversible thermochromic materials
TRANSITIONS OPTICAL INC9 citations84
US7582749B2Sep 1, 2009
Photochromic compounds
TRANSITIONS OPTICAL INC11 citations84
US7579022B2Aug 25, 2009
Photochromic compounds
TRANSITIONS OPTICAL INC8 citations84
US7560124B2Jul 14, 2009
Photochromic compounds
TRANSITIONS OPTICAL INC9 citations84
US7557206B2Jul 7, 2009
Photochromic compounds
TRANSITIONS OPTICAL INC9 citations84
US7847998B2Dec 7, 2010
Polarizing, photochromic devices and methods of making the same
TRANSITIONS OPTICAL INC5 citations74
US7471436B2Dec 30, 2008
Polarizing, photochromic devices and methods of making the same
TRANSITIONS OPTICAL INC2 citations74
US7457025B2Nov 25, 2008
Polarizing, photochromic devices and methods of making the same
TRANSITIONS OPTICAL INC2 citations74
US7286275B2Oct 23, 2007
Polarizing, photochromic devices and methods of making the same
TRANSITIONS OPTICAL INC4 citations74
US7978391B2Jul 12, 2011
Polarizing, photochromic devices and methods of making the same
TRANSITIONS OPTICAL INC5 citations63
PPG IND OHIO INC
10 patentsUS7342112B2Mar 11, 2008
Photochromic compounds
PPG IND OHIO INC76 citations98
US7349138B2Mar 25, 2008
Polarizing, photochromic devices and methods of making the same
PPG IND OHIO INC31 citations96
US7320826B2Jan 22, 2008
Photochromic articles with reduced temperature dependency and methods for preparation
PPG IND OHIO INC65 citations95
US7394585B2Jul 1, 2008
Polarizing, photochromic devices and methods of making the same
PPG IND OHIO INC10 citations92
US8734033B2May 27, 2014
Optical mechanism with indexing stage with at least one fixed diameter apodized aperture and method of making same
PPG IND OHIO INC14 citations83
US8373919B2Feb 12, 2013
Optical element having an apodized aperture
PPG IND OHIO INC9 citations83
US7429105B2Sep 30, 2008
Polarizing, photochromic devices and methods of making the same
PPG IND OHIO INC8 citations82
US7466469B2Dec 16, 2008
Polarizing, photochromic devices and methods of making the same
PPG IND OHIO INC3 citations74
US7359104B2Apr 15, 2008
Polarizing, photochromic devices and methods of making the same
PPG IND OHIO INC2 citations74
US7349137B2Mar 25, 2008
Polarizing, photochromic devices and methods of making the same
PPG IND OHIO INC5 citations74
TRANSITIONS OPTICAL LTD
3 patentsUS11885706B2Jan 30, 2024
Method and system for measuring optical characteristics of a contact lens
TRANSITIONS OPTICAL LTD2 citations70
US11422089B2Aug 23, 2022
Method for measuring optical characteristics of a transparent article
TRANSITIONS OPTICAL LTD4 citations70
US12528262B2Jan 20, 2026
System for marking a coated ophthalmic lens
TRANSITIONS OPTICAL LTD0 citations62