Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9567188 | Absolute position door zone device | Andrew DeLiso | 2017-02-14 |
| 8733507 | Multicar zoned elevator system | Rory Smith, Richard D. Peters, Bruce A. Powell, Gerhard Thumm | 2014-05-27 |
| 8397873 | Zoned elevator system | Rory Smith, Richard D. Peters, Bruce A. Powell, Gerhard Thumm | 2013-03-19 |
| 8100230 | Elevator system with virtual landing | Rory Smith, Richard D. Peters, Bruce A. Powell, Gerhard Thumm | 2012-01-24 |
| 7841450 | Twin elevator systems | Rory Smith, Richard D. Peters, Bruce A. Powell, Gerhard Thumm | 2010-11-30 |
| 7334665 | Interlock wiring communication system for elevators | Rory Smith, San Soemardjan, James Nickerson | 2008-02-26 |
| 7246689 | Self-powered elevator button | James Nickerson | 2007-07-24 |
| 5752869 | Toy construction set | — | 1998-05-19 |