Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6634852 | Sheet understacking feeding mechanism | — | 2003-10-21 |
| 6575457 | Variable length sheet feeding mechanism | — | 2003-06-10 |
| 6551052 | Sheet and stack feeding mechanism | — | 2003-04-22 |
| 6523823 | Rack and pinion adjustment mechanism | — | 2003-02-25 |
| 6485012 | Adjustable indexing roller mechanism | — | 2002-11-26 |
| 6283902 | Roller ring | — | 2001-09-04 |
| 6227532 | Sheet turnover mechanism | — | 2001-05-08 |
| 6173950 | Sheet feeding mechanism | — | 2001-01-16 |
| 6142923 | Roller ring | — | 2000-11-07 |
| D412336 | Roller ring | — | 1999-07-27 |
| 5702097 | Insert feed mechanism | — | 1997-12-30 |
| 5101219 | Long life pen and ink supply unit for X,Y plotter and the like and related method of use | Heinz J. Gerber | 1992-03-31 |
| 4461221 | System for detaining robbers on premises | Alfred J. Schandle | 1984-07-24 |