Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12024402 | Stairlift overspeed safety system | Robert Alexander Pratt, IV, Derek J. Nash, Mark L. Hill | 2024-07-02 |
| 11603287 | Stairlift overspeed safety systems | Robert Alexander Pratt, IV, Derek J. Nash, Mark L. Hill | 2023-03-14 |
| 11505429 | Stairlift overspeed safety systems | Robert Alexander Pratt, IV, Derek J. Nash, Mark L. Hill | 2022-11-22 |