Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7188901 | Chair adjustment mechanism | Gerard Helmond, David Watkins | 2007-03-13 |
| 6692077 | Height adjustment chair control | Gerard J. Matern | 2004-02-17 |
| 6619740 | Chair control mechanism | — | 2003-09-16 |