US Patent No: 5,955,520

Number of patents in Portfolio can not be more than 2000

Photochromic indeno-fused naphthopyrans

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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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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PPG INDUSTRIES OHIO, INC.CLEVELAND, OH1107
TRANSITIONS OPTICAL, INC.PINELLAS PARK, FL155

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Heller, Harry G Cardiff, GB 7 426
Levell, Julian R Lyne, GB 1 24

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Bayer Aktiengesellschaft (1)
* 4,563,458 Substituted 4-aminomethylene-chromans and -chromenes, processes for their preparation and their use in medicaments 23 1983
 
PPG INDUSTRIES, INC. (1)
* 4,931,219 Photochromic compound and articles containing the same 84 1989
 
AO, INC. (1)
* 4,720,356 Photochromic composition resistant to fatigue 147 1987
 
PPG INDUSTRIES OHIO, INC. (7)
* 4,637,698 Photochromic compound and articles containing the same 145 1984
* 4,816,584 Photochromic spiro(indoline)benzoxazines 122 1987
* 4,880,667 Photochromic plastic article and method for preparing same 121 1987
* 4,931,221 Photochromic spiropyran compounds 51 1988
* 5,066,818 Photochromic naphthopyran compounds 156 1990
* 5,244,602 Photochromic naphthopyrans 44 1990
* 5,395,567 Photochromic spironaphthopyran compounds 14 1994
 
Plessey Overseas Limited (2)
* 4,826,977 Photochromic spiropyran compounds 129 1987
* 4,818,096 Photoreactive lenses with adamantane spiro compounds 127 1987
 
TRANSITIONS OPTICAL, INC. (15)
* 5,238,981 Photochromic naphthopyrans 154 1992
* 5,274,132 Photochromic naphthopyran compounds 178 1992
* 5,405,958 Photochromic spiro(indoline)naphthoxazine compounds 157 1992
* 5,369,158 Photochromic naphthopyrans 75 1993
* 5,384,077 Photochromic naphthopyran compounds 148 1993
* 5,466,398 Photochromic substituted naphthopyran compounds 145 1993
* 5,458,814 Substituted naphthopyrans 139 1993
* 5,429,774 Benzopyran compounds 137 1994
* 5,451,344 Photochromic naphthopyran compounds 92 1994
* 5,514,817 Substituted phenanthropyrans 36 1994
* 5,585,042 Photochromic naphthopyrans 14 1994
* 5,552,090 Photochromic naphthopyran compounds 28 1994
* 5,565,147 Photochromic naphthopyran compounds 26 1995
* 5,645,767 Photochromic indeno-fused naphthopyrans 166 1995
* 5,578,252 Photochromic substituted naphthopyran compounds 36 1995
 
AMERICAN OPTICAL CORPORATION (1)
* 4,342,668 Photochromic compounds 146 1980
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2002/0197,562 Naphthopyrans annelated in C5-C6, their preparation and compositions and (CO)polymer matrices containing them 0 2002
 
VISION EASE, LP (DBA VISION-EASE LENS) (1)
6,863,843 Naphthopyran compounds, photoresponsive compositions and lenses 1 2000
 
SECOND OPTICAL HOLDING GMBH (1)
* 6,146,554 Photochromic naphtopyrane colorants, method for the production and use thereof, photochromic object 37 1999
 
CORNING S.A. (3)
6,506,538 Naphthopyrans annelated in C5-C6, their preparation and compositions and (co)polymer matrices containing them 11 1999
6,426,023 Benzopyrans annelated in C7-C8 with an aromatic heterocycle and compositions and (CO)polymer matrices containing them 2 2000
6,379,591 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)
* 6,736,998 Indeno-fused photochromic naphthopyrans 21 2001
7,320,826 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 13 2003
7,556,750 Photochromic materials with reactive substituents 12 2005
* 7,556,751 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 12 2008
8,211,338 Photochromic compounds 1 2008
8,545,984 Photochromic compounds and compositions 2 2010
8,518,546 Photochromic compounds and compositions 1 2010
8,698,117 Indeno-fused ring compounds 2 2011
8,647,538 Photochromic compounds having at least two photochromic moieties 0 2011
9,034,219 Photochromic compounds and compositions 1 2011
9,028,728 Photochromic materials that include indeno-fused naphthopyrans 0 2011
8,920,928 Photochromic compounds and compositions 0 2011
9,139,552 Indeno-fused naphthopyrans having ethylenically unsaturated groups 0 2011
8,705,160 Photochromic compounds 0 2012
9,309,455 Indeno-fused ring compounds 0 2014
 
Rodenstock GmbH (4)
8,013,174 Photochromic spirodihydrophenanthropyrans 0 2008
* 2008/0262,248 Photochromic Spirodihydrophenanthropyrans 1 2008
7,892,296 Photochromic benzopyrans 0 2008
8,933,220 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 7 2005
 
CORNING INCORPORATED (1)
7,332,260 Naphthopyrans annelated in C5-C6, their preparation and compositions and (CO)polymer matrices containing them 0 2002
* Cited By Examiner