Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865937 | Method of making fluorescent toner | John W. May | 1989-09-12 |
| 4812377 | High resolution polyester developers for electrostatography | John C. Wilson, Lawrence P. DeMejo | 1989-03-14 |