Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5056863 | Laterally adjustable armrest for a chair | Larry DeKraker, James P. Steffens | 1991-10-15 |
| 4951995 | Arm height adjustment mechanism for a chair | David S. Teppo, Larry DeKraker, James P. Steffens | 1990-08-28 |