Inventor · disambiguated record
Robert D. Fields
Also filed as: FIELDS ROBERT D
36 granted patents·2 pending applications·544 citations·filing 1985–2007
98Inventor score
Top patents by PatentIndex Score
38 records- 0195US4587154AOil and grease absorbent rinsable nonwoven fabricKIMBERLY CLARK CO·Filed 1985·Granted May 6, 1986·152 cites·13 claims
- 0294US4805644ASidestream reducing cigarette paperKIMBERLY CLARK CO·Filed 1986·Granted Feb 21, 1989·100 cites·19 claims
- 0386US6589703B2Electrographic methods using hard magnetic carrier particlesHEIDELBERGER DRUCKMASCH AG·Filed 2001·Granted Jul 8, 2003·26 cites·35 claims
- 0484US6610451B2Development systems for magnetic toners having reduced magnetic loadingsHEIDELBERGER DRUCKMASCH AG·Filed 2000·Granted Aug 26, 2003·17 cites·15 claims
- 0580US6692880B2Electrophotographic toner with stable triboelectric propertiesHEIDELBERGER DRUCKMASCH AG·Filed 2002·Granted Feb 17, 2004·18 cites·56 claims
- 0679US6165668AN-[2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)-2-cyanoacetyl]benzenesulfonamide charge control agents for electrostatographic toners and developersEASTMAN KODAK CO·Filed 1999·Granted Dec 26, 2000·21 cites·8 claims
- 0777US5922822A(2-(sulfonamidomethylene)-2-cyanoacetamido)phenyl acrylate polymersEASTMAN KODAK CO·Filed 1997·Granted Jul 13, 1999·34 cites·2 claims
- 0875US6766136B2Development systems for magnetic toners and toners having reduced magnetic loadingsEASTMAN KODAK CO·Filed 2003·Granted Jul 20, 2004·11 cites·35 claims
- 0975US5714295AElectrostatographic toners and developers containing (1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)acetate charge-control agentsEASTMAN KODAK CO·Filed 1997·Granted Feb 3, 1998·22 cites·6 claims
- 1061US5874194APoly N-vinylbenzoyl)sulfonamides! charge-control agents for electrostatographic toners and developersEASTMAN KODAK CO·Filed 1997·Granted Feb 23, 1999·14 cites·9 claims
- 1160US6797448B2Electrophotographic toner and development process with improved image and fusing qualityEASTMAN KODAK CO·Filed 2002·Granted Sep 28, 2004·7 cites·26 claims
- 1258US7914963B2Toner compositionEASTMAN KODAK CO·Filed 2007·Granted Mar 29, 2011·1 cites·13 claims
- 1357US6200722B1Method of making an electrophotographic toner surface treated with metal oxideFiled 1999·Granted Mar 13, 2001·17 cites·20 claims
- 1456US6184387B12-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)acetamides negative charge control agents for electrostatographic toners and developersEASTMAN KODAK CO·Filed 2000·Granted Feb 6, 2001·5 cites·5 claims
- 1555US5750715ABis (1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)acetates! charge-control agentsEASTMAN KODAK CO·Filed 1997·Granted May 12, 1998·5 cites·4 claims
- 1654US5849450A(1,2-benzisothiazol-3-(2H)-ylidene 1,1-dioxide) acetate-terminated polymer charge-control agents for electrostatographic toners and developersEASTMAN KODAK CO·Filed 1997·Granted Dec 15, 1998·10 cites·5 claims
- 1753US6197466B1Electrophotographic toner surface treated with metal oxideFiled 1999·Granted Mar 6, 2001·11 cites·20 claims
- 1851US7314696B2Electrophotographic toner and development process with improved charge to mass stabilityEASTMAN KODAK CO·Filed 2001·Granted Jan 1, 2008·4 cites·31 claims
- 1950US5739235A(2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)-2-cyanoacetamido)phenyl acrylate compounds and polymersEASTMAN KODAK CO·Filed 1997·Granted Apr 14, 1998·9 cites·3 claims
- 2049US7056637B2Electrophotographic toner with uniformly dispersed waxEASTMAN KODAK CO·Filed 2003·Granted Jun 6, 2006·3 cites·24 claims
- 2148US7087355B2Electrophotographic toner containing polyalkylene wax or high crystallinity waxEASTMAN KODAK CO·Filed 2005·Granted Aug 8, 2006·0 cites·14 claims
- 2248US5976753AElectrostatographic toners and developers comprising poly[(2-cyanoacetamido)phenyl acrylate] charge-control agentsEASTMAN KODAK CO·Filed 1998·Granted Nov 2, 1999·8 cites·10 claims
- 2348US2006147830A1Electrophotographic toner containing polyalkylene wax or high crystallinity waxEASTMAN KODAK CO·Filed 2006·Application pending·0 cites
- 2446US5744277AElectrostatographic toners and developers containing (1,2-benzisothiazol-3-(2H)-ylidene 1,1-dioxide) acetate-terminated polymer charge-control agentsEASTMAN KODAK CO·Filed 1997·Granted Apr 28, 1998·7 cites·8 claims
- 2541US5922499A2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)-2- cyanoacetamides charge-control agents for electrostatographic toners and developersEASTMAN KODAK CO·Filed 1997·Granted Jul 13, 1999·5 cites·7 claims
- 2641US5821025AN-(1,2-benzisothiazol-3(2H)-ylideneacetyl 1,1-dioxide)amides for electrostatographic toners and developersEASTMAN KODAK CO·Filed 1997·Granted Oct 13, 1998·5 cites·5 claims
- 2741US5716749ABis 2-1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)-2-cyanoacetamide! charge-control agents for electrostatographic tonersEASTMAN KODAK CO·Filed 1997·Granted Feb 10, 1998·5 cites·7 claims
- 2839US7033720B2Development systems for magnetic toners and toners having reduced magnetic loadingsEASTMAN KODAK CO·Filed 2004·Granted Apr 25, 2006·0 cites·18 claims
- 2939US5766815AN-(1,2-benzisothiazol-3(2h)-ylideneacetyl 1,1-dioxide)-benzenesulfonamides charge-control agents for electrostatographic toners and developersEASTMAN KODAK CO·Filed 1997·Granted Jun 16, 1998·4 cites·6 claims
- 3039US5719000ABis 1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide cyanoacetates! for electrostatographic toners and developersEASTMAN KODAK CO·Filed 1997·Granted Feb 17, 1998·4 cites·7 claims
- 3139US5719001A(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)methylene sulfone charge-control agents for electrostatographic tonersEASTMAN KODAK CO·Filed 1997·Granted Feb 17, 1998·4 cites·7 claims
- 3238US2003049552A1Electrophotographic toners containing polyalkylene wax or high crystallinity waxFiled 2002·Application pending·0 cites
- 3337US5821024A(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide) cyanomethylene charge-control agents for electrostatotographic toners and developersEASTMAN KODAK CO·Filed 1997·Granted Oct 13, 1998·3 cites·6 claims
- 3437US5804348APoly N-(acyl)-4-vinylbenzenesulfonamides! charge-control agents for electrostatographic toners and developersEASTMAN KODAK CO·Filed 1997·Granted Sep 8, 1998·3 cites·7 claims
- 3537US5723249A(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide) cyanoacetate charge-control agents for electrostatographic tonersEASTMAN KODAK CO·Filed 1997·Granted Mar 3, 1998·3 cites·7 claims
- 3636US6120964A2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)acetamides negative charge control agents for electrostatographic toners and developersEASTMAN KODAK CO·Filed 1999·Granted Sep 19, 2000·3 cites·7 claims
- 3733US5750305APoly (2-(sulfonamidomethylene)-2-cyanoacetamido)phenyl acrylate! charge-control agents for electrostatographic toners and developersEASTMAN KODAK CO·Filed 1997·Granted May 12, 1998·2 cites·8 claims
- 3832US5723248AElectrostatographic toners and developers containing bis 1,2-benzisthiazol-3(2h) -ylidene 1,1-dioxide) acetates!charge-control agentsEASTMAN KODAK CO·Filed 1997·Granted Mar 3, 1998·1 cites·7 claims
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