Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5281263 | Azo dyes containing a carboxy group | Peter Gregory | 1994-01-25 |
| 5262527 | Disazo dyes suitable for use in ink jet printing | Peter Gregory, Ronald W. Kenyon | 1993-11-16 |
| 5254675 | Anionic disazo dyes | Peter Gregory, David Greenwood | 1993-10-19 |
| 5177195 | Disazo dyes | Peter Gregory | 1993-01-05 |
| 4971875 | Multilayer organic photoconductor | Peter Gregory | 1990-11-20 |