Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5989767 | Carrier particles for electrostatographic developers | Wayne T. Ferrar | 1999-11-23 |
| 5709975 | Coated hard ferrite carrier particles | Wayne T. Ferrar | 1998-01-20 |
| 5705221 | Method of depositing insoluble metal salt deposits on electrostatographic carrier surfaces | — | 1998-01-06 |
| 5686217 | Carrier particles bearing insoluble metal salt deposits | — | 1997-11-11 |
| 5512403 | Mixture of carrier particles useful in electrographic developers | Dinesh Tyagi | 1996-04-30 |
| 5411832 | Method of modifying the charging propensity of carrier particles for electrostatographic developers and modified carrier particles | — | 1995-05-02 |
| 5272039 | Preparation of magnetic carrier particles | — | 1993-12-21 |
| 5124223 | Magnetic carrier cores coated with perfluorinated Werner complexes and developers containing the same | — | 1992-06-23 |
| 5100754 | Coated carrier particles and electrographic developers containing them | Frank A. Pettrone | 1992-03-31 |
| 5096797 | Method for improving performance of barium and strontium ferrite carrier particles with acid wash | — | 1992-03-17 |
| 5061593 | Coated carrier particles for electrographic developers | Frank A. Pettrone | 1991-10-29 |
| 5034297 | Bound metal alkoxide coated toner particles | — | 1991-07-23 |
| 4737435 | Method of modifying the charging propensity of carrier particles for electrostatographic developers | — | 1988-04-12 |
| 4726994 | Method of modifying the charging propensity of carrier particles for electrostatographic developers and carrier particles produced thereby | — | 1988-02-23 |
| 4599290 | Negative charging carrier particles coated with a polymer having appended chlorendate groups | Louis J. Sorriero | 1986-07-08 |
| 4195990 | Electrophotographic papers employing organic photoconductors | William J. Staudenmayer, Michael T. Regan, James A. Van Allan | 1980-04-01 |