Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11332940 | Moveable stair systems and methods | Roger W. Barr, Kevin W. Smith, Anthony J. Peachey, Timothy A. Fisher, Harold Dale Mathias +4 more | 2022-05-17 |
| 10968636 | Moveable stair systems and methods | Roger W. Barr, Kevin W. Smith, Anthony J. Peachey, Timothy A. Fisher, Harold Dale Mathias +4 more | 2021-04-06 |
| 10584480 | Stair expansion joint system with freedom of movement between landings | Roger W. Barr, Kevin W. Smith, Anthony J. Peachey, Timothy A. Fisher, Harold Dale Mathias +2 more | 2020-03-10 |
| 9869084 | Stair expansion joint system with freedom of movement between landings | Roger W. Barr, Kevin W. Smith, Anthony J. Peachey, Timothy A. Fisher, Harold Dale Mathias +2 more | 2018-01-16 |
| 9758981 | Stair expansion joint system with freedom of movement between landings | Roger W. Barr, Kevin W. Smith, Anthony J. Peachey, Timothy A. Fisher, Harold Dale Mathias +2 more | 2017-09-12 |