Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479679 | Body weight chair control | Bernard J. Fries, Frederick S. Faiks | 1984-10-30 |
| 4214726 | Chair control | Alexander A. Karrip, Jack R. Knoblauch, Charles C. Pergler | 1980-07-29 |