Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6604611 | Condition-based, auto-thresholded elevator maintenance | Jun Liu, Juan A. Lence-Barriero, Harry Huang | 2003-08-12 |
| 6543583 | Elevator auditing with recommended action, reason and severity in maintenance messages | Juan A. Lence Barreiro | 2003-04-08 |
| 6516923 | Elevator auditing and maintenance | Juan A. Lence Barreiro | 2003-02-11 |
| 6484125 | Service information derived from elevator operational parameters | Harry Huang, Juan A. Lence Barreiro, Ronald R. Pepin, Gary L. Freeland, Robert H. Mashiak | 2002-11-19 |
| 6439350 | Differentiating elevator car door and landing door operating problems | Juan A. Lence Barreiro, Jun Liu | 2002-08-27 |
| 6330936 | Elevator behavior reported in occurrence-related groups | Juan A. Lence Barreiro, Harry Huang, Gary L. Freeland, Robert H. Mashiak | 2001-12-18 |
| 6325179 | Determining elevator brake, traction and related performance parameters | Juan A. Lence Barreiro, Harry Huang | 2001-12-04 |