Photochromic indeno-fused naphthopyrans

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5955520
SERIAL NO

08666726

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Abstract

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Described are novel photochromic indeno-fused naphthopyran compounds, examples of which are naphthopyran compounds having a substituted or unsubstituted indeno group, the 2,1 positions of which are fused to the f side of the naphtho portion of the naphthopyran, and having certain substituents at the 3-position of the pyran ring. Certain substituents may also be present at the number 5, 6, 7, 8, 9, 10, 11, 12 or 13 carbon atoms of the compounds. These compounds may be represented by the following graphic formula: ##STR1## Also described are polymeric organic host materials that contain or that are coated with such compounds. Optically clear articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., certain other naphthopyrans, benzopyrans and spiro(indoline)type compounds, are also described.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PPG INDUSTRIES OHIO, INC.CLEVELAND, OH947
TRANSITIONS OPTICAL, INC.PINELLAS PARK, FL162

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Heller, Harry G Cardiff, GB 7 437
Levell, Julian R Lyne, GB 1 25

Cited Art Landscape

Patent Info (Count) # Cites Year
 
BAYER AKTIENGESELLSCHAFT (1)
* 4563458 Substituted 4-aminomethylene-chromans and -chromenes, processes for their preparation and their use in medicaments 23 1983
 
Linda Pingitore;PPG Industries, Inc. (1)
* 4931219 Photochromic compound and articles containing the same 89 1989
 
AO, INC. (1)
* 4720356 Photochromic composition resistant to fatigue 151 1987
 
PPG INDUSTRIES OHIO, INC. (7)
* 4637698 Photochromic compound and articles containing the same 150 1984
* 4816584 Photochromic spiro(indoline)benzoxazines 127 1987
* 4880667 Photochromic plastic article and method for preparing same 128 1987
* 4931221 Photochromic spiropyran compounds 51 1988
* 5066818 Photochromic naphthopyran compounds 162 1990
* 5244602 Photochromic naphthopyrans 44 1990
* 5395567 Photochromic spironaphthopyran compounds 14 1994
 
PLESSEY OVERSEAS LIMITED, VICARAGE LANE, ILFORD, ESSEX (2)
* 4826977 Photochromic spiropyran compounds 134 1987
* 4818096 Photoreactive lenses with adamantane spiro compounds 132 1987
 
TRANSITIONS OPTICAL, INC. (15)
* 5238981 Photochromic naphthopyrans 154 1992
* 5274132 Photochromic naphthopyran compounds 183 1992
* 5405958 Photochromic spiro(indoline)naphthoxazine compounds 162 1992
* 5369158 Photochromic naphthopyrans 75 1993
* 5384077 Photochromic naphthopyran compounds 153 1993
* 5466398 Photochromic substituted naphthopyran compounds 150 1993
* 5458814 Substituted naphthopyrans 140 1993
* 5429774 Benzopyran compounds 141 1994
* 5451344 Photochromic naphthopyran compounds 92 1994
* 5514817 Substituted phenanthropyrans 36 1994
* 5585042 Photochromic naphthopyrans 14 1994
* 5552090 Photochromic naphthopyran compounds 28 1994
* 5565147 Photochromic naphthopyran compounds 26 1995
* 5645767 Photochromic indeno-fused naphthopyrans 173 1995
* 5578252 Photochromic substituted naphthopyran compounds 36 1995
 
AMERICAN OPTICAL CORPORATION (1)
* 4342668 Photochromic compounds 151 1980
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
* 2002/0197,562 Naphthopyrans annelated in C5-C6, their preparation and compositions and (CO)polymer matrices containing them 2 2002
* 2005/0254,003 Photochromic blue light filtering materials and ophthalmic devices 25 2005
 
VISION EASE, LP (1)
6863843 Naphthopyran compounds, photoresponsive compositions and lenses 1 2000
 
SECOND OPTICAL HOLDING GMBH (1)
* 6146554 Photochromic naphtopyrane colorants, method for the production and use thereof, photochromic object 38 1999
 
Corning S.A. (3)
6506538 Naphthopyrans annelated in C5-C6, their preparation and compositions and (co)polymer matrices containing them 12 1999
6426023 Benzopyrans annelated in C7-C8 with an aromatic heterocycle and compositions and (CO)polymer matrices containing them 2 2000
6379591 Naphthopyrans annelated in C5-C6 with a lactam-type C6 ring and compositions and (co)polymer matrices containing them 4 2000
 
TRANSITIONS OPTICAL, INC. (17)
* 6736998 Indeno-fused photochromic naphthopyrans 21 2001
7320826 Photochromic articles with reduced temperature dependency and methods for preparation 28 2003
* 2004/0191,520 Photochromic articles with reduced temperature dependency and methods for preparation 14 2003
7556750 Photochromic materials with reactive substituents 15 2005
* 7556751 Photochromic materials having electron-withdrawing substituents 4 2005
* 2009/0032,782 PHOTOCHROMIC MATERIALS HAVING EXTENDED PI-CONJUGATED SYSTEMS AND COMPOSITIONS AND ARTICLES INCLUDING THE SAME 13 2008
8211338 Photochromic compounds 2 2008
8545984 Photochromic compounds and compositions 2 2010
8518546 Photochromic compounds and compositions 1 2010
8698117 Indeno-fused ring compounds 3 2011
8647538 Photochromic compounds having at least two photochromic moieties 0 2011
9034219 Photochromic compounds and compositions 1 2011
9028728 Photochromic materials that include indeno-fused naphthopyrans 0 2011
8920928 Photochromic compounds and compositions 0 2011
9139552 Indeno-fused naphthopyrans having ethylenically unsaturated groups 0 2011
8705160 Photochromic compounds 0 2012
9309455 Indeno-fused ring compounds 0 2014
 
TOKUYAMA CORPORATION (1)
9643905 Phenylnaphthol derivatives 0 2014
 
RODENSTOCK GMBH (5)
8013174 Photochromic spirodihydrophenanthropyrans 0 2008
* 2008/0262,248 Photochromic Spirodihydrophenanthropyrans 1 2008
7892296 Photochromic benzopyrans 0 2008
* 2010/0243,971 PHOTOCHROMIC BENZOPYRANS 0 2008
8933220 Photochromic fused naphthopyrans having a benzene ring which is adjacent to the pyran oxygen and is linked to the para substituent via both meta positions 0 2011
 
BAUSCH & LOMB INCORPORATED (1)
* 2007/0159,594 Photochromic blue light filtering materials and ophthalmic devices 10 2005
 
CORNING INCORPORATED (1)
7332260 Naphthopyrans annelated in C5-C6, their preparation and compositions and (CO)polymer matrices containing them 1 2002
* Cited By Examiner