Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7036881 | Chair seat tilt mechanism | — | 2006-05-02 |
| 6491344 | Chair adjustment mechanism | William S. Stumpf | 2002-12-10 |
| 6447063 | Chair seat tilt mechanism | — | 2002-09-10 |
| 6378943 | Chair tilt lock mechanisms | Gerard J. Matern | 2002-04-30 |
| 6290296 | Anti-rattle pad | — | 2001-09-18 |
| D447652 | Chair control lever | — | 2001-09-11 |
| 5649741 | Adjusting mechanism | — | 1997-07-22 |