Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8853992 | Method and conveyor system | — | 2014-10-07 |
| 7950514 | Apparatus and method for variable torque braking of escalators and moving walkways | Thomas Nurnberg | 2011-05-31 |
| 7407048 | Safety switch and method of checked redundancy | — | 2008-08-05 |
| 5610374 | Safety string polling system | John M. Bril | 1997-03-11 |