Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889784 | Organic photoconductors with improved wear | Robert B. Champ, Donald A. Stremel | 1989-12-26 |
| 4874682 | Organic photoconductors with reduced fatigue | John Campbell Scott | 1989-10-17 |