Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D344973 | Copier with document handler and finisher | Mark S. Penke, Robert E. Kalvitis, William T Clark, III, Marland Chow, Hideyuki Matsubara +1 more | 1994-03-08 |
| D335682 | Document handler for copier or printer | Mark S. Penke, Robert E. Kalvitis, William T Clark, III, Marland Chow, Hideyuki Matsubara +1 more | 1993-05-18 |
| 4900005 | Sheet feed apparatus | Richard Blyth, Jeffrey J. Masters, Ian J. Hirst | 1990-02-13 |