Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648801 | Grayscale printing system | Gary S. Keller, Francis Chee-Shuen Lee | 1997-07-15 |
| 5394226 | Method for reducing high quality electrophotographic images | Lawrence B. Schein | 1995-02-28 |
| 4733268 | Voltage control bar for electrophotography | Michael H. Lee | 1988-03-22 |