Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5554471 | Combination of toners | Jacques C. Bertrand, Thomas R. Pickering, Denise R. Bayley | 1996-09-10 |
| 5534379 | Environmentally friendly toner composition | Edul N. Dalal, Sue E. Blaszak, Robert L. Gruber, Jacques C. Bertrand | 1996-07-09 |
| 5484678 | Toner compositions with charge additive mixture | Thomas R. Pickering, Denise R. Bayley | 1996-01-16 |
| 5393632 | Toner compositions with manganese complex charge enhancing additives | Thomas R. Pickering, Denise R. Bayley, Jacques C. Bertrand | 1995-02-28 |
| 5366840 | Liquid developer compositions | James R. Larson, Frank J. Bonsignore, Thomas R. Pickering, Denise R. Bayley, Jacques C. Bertrand | 1994-11-22 |
| 5358821 | Process for producing electrophotographic toners containing passivated pigments | Jacques C. Bertrand | 1994-10-25 |
| 5346793 | Toner compositions with aluminum charge enhancing additives | Jacques C. Bertrand, Denise R. Bayley, Thomas R. Pickering | 1994-09-13 |
| 5346795 | Toner and developer compositions | Thomas R. Pickering, Denise R. Bayley, Jacques C. Bertrand | 1994-09-13 |
| 5326662 | Passivated toner compositions and processes thereof | Don B. Jugle, Jacques C. Bertrand | 1994-07-05 |
| 5324613 | Toner and developer compositions | Denise R. Bayley, Jacques C. Bertrand, Thomas R. Pickering | 1994-06-28 |
| 5278019 | Passivated green toner composition | Denise R. Bayley | 1994-01-11 |
| 5275905 | Magenta toner compositions | Don B. Jugle | 1994-01-04 |
| 5250381 | Toner compositions with aluminum charge enhancing additives | Jacques C. Bertrand, Denise R. Bayley, Thomas R. Pickering | 1993-10-05 |
| 5250379 | Toner compositions with metal complex charge enhancing additives | Denise R. Bayley, Thomas R. Pickering, Jacques C. Bertrand | 1993-10-05 |
| 5250380 | Toner compositions with metal complex charge enhancing additives | Denise R. Bayley, Thomas R. Pickering, Jacques C. Bertrand | 1993-10-05 |
| 5223368 | Toner and developer compositions comprising aluminum charge control agent | Denise R. Bayley, Jacques C. Bertrand, Thomas R. Pickering | 1993-06-29 |
| 5212036 | Passivated green toner compositions comprising positive charge enhancing additive | Denise R. Bayley | 1993-05-18 |
| 5208129 | Passivated toner compositions comprising positive charge enhancing additive | Denise R. Bayley | 1993-05-04 |
| 5139916 | Processes for the preparation of toner compositions | — | 1992-08-18 |
| 5120632 | Pigment passivation via polymer encapsulation | Jacques C. Bertrand | 1992-06-09 |
| 5075185 | Imaging process comprising tri-level imaging area and an aluminum complex charge enhancing additive | Jacques C. Bertrand, Denise R. Leon-Bayley, Linda J. Nelson | 1991-12-24 |
| 4789615 | Toner compositions with nicotinate charge enhancing additives | Jacques C. Bertrand | 1988-12-06 |
| 4623606 | Toner compositions with negative charge enhancing additives | — | 1986-11-18 |
| 4621039 | Developer compositions with fast admixing characteristics | Denise R. Leon | 1986-11-04 |
| 4397935 | Positively charged developer compositions containing quaternized vinyl pyridine polymers | Thomas R. Hoffend | 1983-08-09 |