Issued Patents All Time
Showing 176–200 of 235 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5532098 | Toner compositions with negative charge enhancing additives | — | 1996-07-02 |
| 5491228 | Preparative processes for dihydroxygermanium phthalocyanine | Cheng-Kuo Hsiao | 1996-02-13 |
| 5441837 | Photoconductive imaging members with acetoxymetal phthalocyanines | Cheng-Kuo Hsiao | 1995-08-15 |
| 5437950 | Electrophotographic imagimg member with enhanced photo-electric sensitivity | Robert C. U. Yu | 1995-08-01 |
| 5409794 | Toner compositions with metal chelate charge enhancing additives | — | 1995-04-25 |
| 5391453 | Toner compositions with aluminum complex composite charge additives | — | 1995-02-21 |
| 5382493 | Hydroxygermanium phthalocyanine processes | Terry L. Bluhm, Cheng-Kuo Hsiao | 1995-01-17 |
| 5334471 | Low gloss encapsulated compositions | Guerino G. Sacripante, Grazyna E. Kmiecik-Lawrynowicz | 1994-08-02 |
| 5332636 | Toner compositions with aluminum negative charge enhancing additives | — | 1994-07-26 |
| 5324616 | Encapsulated toner compositions and processes thereof | Guerino G. Sacripante, Barkev Keoshkerian | 1994-06-28 |
| 5304448 | Encapsulated toner compositions | Barkev Keoshkerian, Padam K. Angra | 1994-04-19 |
| 5302481 | Toner compositions with negative charge enhancing complexes | — | 1994-04-12 |
| 5300387 | Toner compositions with negative charge enhancing additives | — | 1994-04-05 |
| 5290651 | Toner compositions with zinc complex charge enhancing additives | — | 1994-03-01 |
| 5275900 | Toner compositions with metal complex charge enhancing additives | Lurdes M. Martins | 1994-01-04 |
| 5248580 | Photoconductive imaging members with ladder polymers | Milan Stolka, Martin A. Abkowitz, Samson A. Jenekhe | 1993-09-28 |
| 5238768 | Toner compositions with sulfone charge enhancing additives | — | 1993-08-24 |
| 5215855 | Encapsulated toner compositions | Barkev Keoshkerian | 1993-06-01 |
| 5213934 | Microcapsule toner compositions | Guerino G. Sacripante, Bing R. Hsieh, Robert McNamara | 1993-05-25 |
| 5200290 | Liquid developers containing colored polymers with a color chromophore covalently bound thereto | Melvin D. Croucher, Raymond W. Wong | 1993-04-06 |
| 5194356 | Toner compositions | Guerino G. Sacripante, Michael J. Levy, Richard B. Lewis | 1993-03-16 |
| 5175071 | Encapsulated toner composition | Walter Mychajlowskij, Barkev Keoshkerian, Guerino G. Sacripante | 1992-12-29 |
| 5153093 | Overcoated encapsulated toner compositions and processes thereof | Guerino G. Sacripante, Lurdes M. Martins | 1992-10-06 |
| 5153089 | Encapsulated toner compositions and processes thereof | Walter Mychajlowskij, Guerino G. Sacripante, Grazyna E. Kmiecik-Lawrynowicz | 1992-10-06 |
| 5147744 | MICR processes with colored encapsulated compositions | Guerino G. Sacripante, Richard P. N. Veregin, Padam K. Angra | 1992-09-15 |