Inventor · disambiguated record
Barry Van Gemert
Also filed as: GEMERT BARRY VAN · VAN GEMERT BARRY
47 granted patents·3 pending applications·3,409 citations·filing 1981–2022
99Inventor score
Files withTRANSITIONS OPTICAL INC20PPG INDUSTRIES INC15JOHNSON & JOHNSON VISION CARE3PPG IND OHIO INC3AMERICAN CYANAMID CO2
Top patents by PatentIndex Score
50 records- 0199US10197707B2Ophthalmic devices comprising photochromic materials with reactive sub substituentsJOHNSON & JOHNSON VISION CARE·Filed 2015·Granted Feb 5, 2019·58 cites·40 claims
- 0299US7556750B2Photochromic materials with reactive substituentsTRANSITIONS OPTICAL INC·Filed 2005·Granted Jul 7, 2009·100 cites·30 claims
- 0399US5645767APhotochromic indeno-fused naphthopyransTRANSITIONS OPTICAL INC·Filed 1995·Granted Jul 8, 1997·529 cites·22 claims
- 0499US5466398APhotochromic substituted naphthopyran compoundsTRANSITIONS OPTICAL INC·Filed 1993·Granted Nov 14, 1995·260 cites·22 claims
- 0598US5658501ASubstituted naphthopyransTRANSITIONS OPTICAL INC·Filed 1995·Granted Aug 19, 1997·345 cites·20 claims
- 0698US5451344APhotochromic naphthopyran compoundsTRANSITIONS OPTICAL INC·Filed 1994·Granted Sep 19, 1995·131 cites·22 claims
- 0798US5244602APhotochromic naphthopyransPPG INDUSTRIES INC·Filed 1990·Granted Sep 14, 1993·68 cites·32 claims
- 0897US6630597B1Photochromic 6-aryl substituted 3H-naphtho(2,1-b)pyransTRANSITIONS OPTICAL INC·Filed 1997·Granted Oct 7, 2003·141 cites·22 claims
- 0997US6348604B1Photochromic naphthopyransPPG IND OHIO INC·Filed 2000·Granted Feb 19, 2002·240 cites·23 claims
- 1097US5458814ASubstituted naphthopyransTRANSITIONS OPTICAL INC·Filed 1993·Granted Oct 17, 1995·230 cites·24 claims
- 1196US5651923ASubstituted naphthopyransTRANSITIONS OPTICAL INC·Filed 1995·Granted Jul 29, 1997·105 cites·21 claims
- 1296US5395567APhotochromic spironaphthopyran compoundsPPG INDUSTRIES INC·Filed 1994·Granted Mar 7, 1995·39 cites·15 claims
- 1395US9052438B2Ophthalmic devices comprising photochromic materials with reactive substituentsXIAO WENJING·Filed 2005·Granted Jun 9, 2015·61 cites·11 claims
- 1495US7560056B2Photochromic contact lenses and methods of manufacturingTRANSITION OPTICAL INC·Filed 2008·Granted Jul 14, 2009·46 cites·2 claims
- 1594US5578252APhotochromic substituted naphthopyran compoundsTRANSITIONS OPTICAL INC·Filed 1995·Granted Nov 26, 1996·76 cites·20 claims
- 1694US5552090APhotochromic naphthopyran compoundsPPG INDUSTRIES INC·Filed 1994·Granted Sep 3, 1996·57 cites·21 claims
- 1793US9028728B2Photochromic materials that include indeno-fused naphthopyransBANCROFT KEVIN E·Filed 2011·Granted May 12, 2015·62 cites·13 claims
- 1893US5565147APhotochromic naphthopyran compoundsTRANSITIONS OPTICAL INC·Filed 1995·Granted Oct 15, 1996·55 cites·22 claims
- 1992US7584630B2Photochromic ocular devicesTRANSITIONS OPTICAL INC·Filed 2005·Granted Sep 8, 2009·67 cites·20 claims
- 2091US7556751B2Photochromic materials having electron-withdrawing substituentsTRANSITIONS OPTICAL INC·Filed 2005·Granted Jul 7, 2009·24 cites·25 claims
- 2191US7320826B2Photochromic articles with reduced temperature dependency and methods for preparationPPG IND OHIO INC·Filed 2003·Granted Jan 22, 2008·65 cites·56 claims
- 2291US5658500ASubstituted naphthopyransTRANSITIONS OPTICAL INC·Filed 1995·Granted Aug 19, 1997·60 cites·20 claims
- 2391US5637262APhotochromic substituted naphthopyran compoundsTRANSITIONS OPTICAL INC·Filed 1995·Granted Jun 10, 1997·52 cites·21 claims
- 2489US5340857APhotochromic naphthopyransPPG INDUSTRIES INC·Filed 1993·Granted Aug 23, 1994·33 cites·13 claims
- 2588US5753146APhotochromic naphthopyran compositions of neutral colorTRANSITIONS OPTICAL INC·Filed 1996·Granted May 19, 1998·116 cites·34 claims
- 2687US5869658APhotochromic indeno-fused naptho 2,1-b!pyransPPG INDUSTRIES INC·Filed 1997·Granted Feb 9, 1999·87 cites·22 claims
- 2785US5650098ASubstituted naphthopyransTRANSITIONS OPTICAL INC·Filed 1995·Granted Jul 22, 1997·73 cites·20 claims
- 2885US4426527A3-[5- Or 3-substituted-1,2,4-oxadiazol-3- or -5-yl]-1-substituted-4-substituted-5-substituted or unsubstituted-2-imidazolidinonesPPG INDUSTRIES INC·Filed 1982·Granted Jan 17, 1984·18 cites·3 claims
- 2983US11256002B2Ophthalmic devices comprising photochromic materials with reactive substituentsJOHNSON & JOHNSON VISION CARE·Filed 2018·Granted Feb 22, 2022·2 cites·6 claims
- 3082US5330686ATemperature stable and sunlight protected photochromic articlesPPG INDUSTRIES INC·Filed 1992·Granted Jul 19, 1994·27 cites·19 claims
- 3182US4622065ASulfamoyl urea derivativesPPG INDUSTRIES INC·Filed 1985·Granted Nov 11, 1986·16 cites·5 claims
- 3279US9139552B2Indeno-fused naphthopyrans having ethylenically unsaturated groupsXIAO WENJING·Filed 2011·Granted Sep 22, 2015·4 cites·15 claims
- 3379US7094368B2Pyrano-quinolines, pyrano-quinolinones, combinations thereof, photochromic compositions and articlesTRANSITIONS OPTICAL INC·Filed 2003·Granted Aug 22, 2006·22 cites·5 claims
- 3478US5674432APhotochromic naphthopyran compoundsTRANSITIONS OPTICAL INC·Filed 1995·Granted Oct 7, 1997·41 cites·17 claims
- 3577US6106744APhotochromic pyrano-fused naphthopyransPPG IND OHIO INC·Filed 1997·Granted Aug 22, 2000·52 cites·22 claims
- 3676US8765978B2Method of making indeno-fused naphthol materialsCHOPRA ANU·Filed 2011·Granted Jul 1, 2014·1 cites·9 claims
- 3775US11874434B2Ophthalmic devices comprising photochromic materials with reactive substituentsJOHNSON & JOHNSON VISION CARE·Filed 2022·Granted Jan 16, 2024·0 cites·17 claims
- 3873US4388473ASubstituted benzoic or phenylacetic acid esters having plant growth regulating propertiesPPG INDUSTRIES INC·Filed 1981·Granted Jun 14, 1983·8 cites·7 claims
- 3972US4559081ASulfamoyl urea derivativesPPG INDUSTRIES INC·Filed 1984·Granted Dec 17, 1985·7 cites·5 claims
- 4065US4666508ASulfamoyl urea derivativesPPG INDUSTRIES INC·Filed 1985·Granted May 19, 1987·9 cites·4 claims
- 4164US9073838B2Method of making indeno-fused naphthol materialsTRANSITIONS OPTICAL INC·Filed 2014·Granted Jul 7, 2015·0 cites·10 claims
- 4263US2009072206A1Ophthalmic devices comprising photochromic materials having extended pi-conjugated systemsKIM BEON-KYU·Filed 2008·Application pending·0 cites
- 4361US4741762ASulfamoyl urea derivativesPPG INDUSTRIES INC·Filed 1986·Granted May 3, 1988·7 cites·3 claims
- 4456US4911749AAquatic herbicidal methodsAMERICAN CYANAMID CO·Filed 1989·Granted Mar 27, 1990·4 cites·4 claims
- 4556US4449998AHerbicidally active oxadiazole ureasPPG INDUSTRIES INC·Filed 1982·Granted May 22, 1984·3 cites·6 claims
- 4656US2009032782A1Photochromic materials having extended pi-conjugated systems and compositions and articles including the sameTRANSITIONS OPTICAL INC·Filed 2008·Application pending·0 cites
- 4752US4592776ASulfamoyl urea derivativesPPG INDUSTRIES INC·Filed 1985·Granted Jun 3, 1986·4 cites·5 claims
- 4851US4857099ATerrestrial and aquatic herbicidal methodsAMERICAN CYANAMID CO·Filed 1986·Granted Aug 15, 1989·3 cites·4 claims
- 4948US2006226402A1Ophthalmic devices comprising photochromic materials having extended PI-conjugated systemsKIM BEON-KYU·Filed 2005·Application pending·0 cites
- 5037US4612038AHerbicidally active 3-oxadiazolyl-2-imidazolidinonesPPG INDUSTRIES INC·Filed 1985·Granted Sep 16, 1986·1 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →