Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7806482 | Drop-in seat unit | Duane Olson, Duane D. Herold | 2010-10-05 |
| 7438362 | Drop-in seat unit | Duane Olson, Duane D. Herold | 2008-10-21 |
| 5586830 | Pivoting and variable height table | Ronald G. Wanek, Brian Konkel, Duane D. Herold | 1996-12-24 |