Issued Patents All Time
Showing 51–75 of 135 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5719001 | (1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)methylene sulfone charge-control agents for electrostatographic toners | Robert D. Fields | 1998-02-17 |
| 5719000 | Bis1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide cyanoacetates! for electrostatographic toners and developers | Robert D. Fields | 1998-02-17 |
| 5716749 | Bis2-1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)-2-cyanoacetamide! charge-control agents for electrostatographic toners | Robert D. Fields | 1998-02-10 |
| 5714295 | Electrostatographic toners and developers containing (1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)acetate charge-control agents | Robert D. Fields | 1998-02-03 |
| 5714293 | Toner compositions containing N-(2-cyanoethenyl)sulfonamides | Peter S. Alexandrovich | 1998-02-03 |
| 5703265 | Monofunctional n--(2--cyanoethenyl)sulfonamides | Peter S. Alexandrovich | 1997-12-30 |
| 5681680 | Difunctional N-(2-cyanoethenyl) sulfonamides and toner compositions containing them | Peter S. Alexandrovich | 1997-10-28 |
| 5616797 | N-(carbonyl, carbonimidoyl, carbonothioyl)sulfonamide charge control agents and toners and developers | Peter S. Alexandrovich, Steven M. Bonser | 1997-04-01 |
| 5616444 | Toners and developers containing BIS(ammonium) tetrahalocuprate salts as charge-control agents | Dinesh Tyagi | 1997-04-01 |
| 5604069 | Toners and developers containing ammonium trihalozincates as charge-control agents | Dinesh Tyagi | 1997-02-18 |
| 5582946 | Toners and developers containing bis(ammonium) tetrahalomanganate salts as charge-control agents | Dinesh Tyagi | 1996-12-10 |
| 5571457 | Biasable transfer compositions and members having extended electrical life | William B. Vreeland, Mark C. Zaretsky | 1996-11-05 |
| 5561020 | Quaternary phosphonium trihalozincate salts as charge-control agents for toners and developers | Dinesh Tyagi | 1996-10-01 |
| 5554474 | Conductive substrate bearing a elastomeric polyurethane coating containing a conductivity control agent | William B. Vreeland, Mark C. Zaretsky | 1996-09-10 |
| 5547803 | Quaternary phosphonium trihalocuprate salts as charge-control agents for toners and developers | Dinesh Tyagi | 1996-08-20 |
| 5541001 | Polyurethane biasable transfer members having improved moisture stability | William B. Vreeland, Mark C. Zaretsky | 1996-07-30 |
| 5523484 | Bis and tris N-(carbonyl, carbonimidoyl, carbonothioyl) sulfonamide charge control agents, toners and developers | Peter S. Alexandrovich | 1996-06-04 |
| 5516616 | Quaternary ammonium salts as charge-control agents for toners and developers | Dinesh Tyagi | 1996-05-14 |
| 5512407 | Bis(quaternary phosphonium) tetrahalomanganate salts as charge-control agents | Dinesh Tyagi | 1996-04-30 |
| 5508140 | Toners and developers containing quaternary phosphonium 3,5-Di-tertiary-alkyl-4-hydroxybenzenesulfonates as charge-control agents | Dinesh Tyagi | 1996-04-16 |
| 5491044 | Toners and developers containing quaternary ammonium 3,5-di-tertiary-alkyl-4-hydroxybezenesulfonate salts as charge-control agents | Dinesh Tyagi | 1996-02-13 |
| 5464719 | Toners and developers containing ammonium tetrahaloferrate salts as charge-control agents | Dinesh Tyagi | 1995-11-07 |
| 5459006 | Quaternary phosphonium tetrahaloferrate salts as charge-control agents for toners | Dinesh Tyagi | 1995-10-17 |
| 5405727 | N-(carbonyl, carbonimidoyl, carbonothioyl) sulfonamide charge control agents and toners and developers | Peter S. Alexandrovich, Steven M. Bonser | 1995-04-11 |
| 5385800 | Bis and tris N-(carbonyl, carbonimidoyl, carbonothioyl)sulfonamide charge control agents, toners and developers | Peter S. Alexandrovich | 1995-01-31 |