Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5239346 | Agitator for toner supply system having cleaning attachment | Robert W. Corbin, Teresa A. Kime | 1993-08-24 |
| 4999679 | Cleaning apparatus with housing and brush biased to the same magnitude and polarity | Robert W. Corbin, Steven E. Kolb | 1991-03-12 |