Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6484125 | Service information derived from elevator operational parameters | Harry Huang, Juan A. Lence Barreiro, Chouhwan Moon, Ronald R. Pepin, Gary L. Freeland | 2002-11-19 |
| 6330936 | Elevator behavior reported in occurrence-related groups | Juan A. Lence Barreiro, Harry Huang, Chouhwan Moon, Gary L. Freeland | 2001-12-18 |
| 5760350 | Monitoring of elevator door performance | Ronald R. Pepin, Sanjay Kamani, Patrick Lusaka, Jean-Marie Rennetaud | 1998-06-02 |