Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5842264 | Chair construction and method of assembly | Charles P. Roossien, David C. Pugh, Dale M. Groendal, Robert Scheper, Duane F. Nagel +3 more | 1998-12-01 |
| RE35805 | Two-way actuator for a chair height adjustment mechanism | Brian L. Scholten | 1998-05-26 |
| 5662381 | Chair construction and method of assembly | Charles P. Roossien, David C. Pugh, Dale M. Groendal, Robert Scheper, Duane F. Nagel +3 more | 1997-09-02 |
| 5540481 | Chair with zero front rise control | Charles P. Roossien, Dale M. Groendal, Robert Scheper, Douglas A. Smith, David C. Pugh | 1996-07-30 |
| 5318346 | Chair with zero front rise control | Charles P. Roossien, David C. Pugh, Dale M. Groendal, Robert Scheper, Daniel P. Beemer +4 more | 1994-06-07 |
| 5213295 | Two-way actuator for a chair height adjustment mechanism | Brian L. Scholten | 1993-05-25 |