Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5232810 | Toner composition comprising fullerene | — | 1993-08-03 |
| 5215841 | Electrophotographic imaging member with overcoatings containing fullerenes | Merlin E. Scharfe, Joseph Mammino, Donald S. Sypula | 1993-06-01 |
| 5188918 | Toner and developer compositions comprising fullerene | — | 1993-02-23 |
| 5166381 | Blocking layer for photoreceptors | Leon A. Teuscher | 1992-11-24 |
| 5120628 | Transparent photoreceptor overcoatings | Joseph Mammino, Donald S. Sypula | 1992-06-09 |
| 5091278 | Blocking layer for photoreceptors | Leon A. Teuscher | 1992-02-25 |
| 4877768 | Processes for the preparation of copper oxide superconductors | — | 1989-10-31 |
| 4876240 | Processes for the preparation of copper oxide superconductors | — | 1989-10-24 |
| 4810611 | Developer compositions with coated carrier particles having incorporated therein colorless additives | Paul C. Julien | 1989-03-07 |
| 4474866 | Developer composition containing superparamagnetic polymers | — | 1984-10-02 |
| 4267247 | Low specific gravity magnetic carrier materials | Richard B. Lewis | 1981-05-12 |
| 4264648 | Low specific gravity magnetic carrier materials | Richard B. Lewis | 1981-04-28 |
| 4245026 | Production of low density coated magnetic polymer carrier particulate materials | — | 1981-01-13 |
| 4238558 | Low density magnetic polymer carrier materials produced by metal carbonyl thermal decomposition | — | 1980-12-09 |
| 4199614 | Transparent colored magnetic materials and electrostatographic process | — | 1980-04-22 |