Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7614490 | Passenger conveyor handrail having a gripping surface with a generally circular cross-section | John M. Milton-Benoit, Bryan Robert Siewert, Andre Picker, Matthias Steffen, Andreas Stuffel +2 more | 2009-11-10 |
| 7475757 | Elevator dispatching with balanced passenger perception of waiting | David J. Sirag, Jr. | 2009-01-13 |
| 6629583 | Fixture for an elevator system | Bruce Zepke, Wei-Quan Ng | 2003-10-07 |
| 6545236 | Vehicle interior component having a flexible cover with integrated circuitry | David J. Sirag, Jr. | 2003-04-08 |
| 6357554 | Elevator ride improvements utilizing smart floor | David J. Sirag, Jr., Robert G. Morgan | 2002-03-19 |