Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8464840 | Security-based elevator control to address a security violation involving at least one elevator car at a landing | Michael P. Flynn, Leslie Earl Grey | 2013-06-18 |
| 8172043 | Elevator cross-dispatching system with inter group relative system response (IRSR) dispatching | David M. Hughes, John Grant | 2012-05-08 |