Issued Patents 2003
Showing 1–3 of 3 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 |