Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10745244 | Method of automated testing for an elevator safety brake system and elevator brake testing system | Guohong Hu | 2020-08-18 |
| 10597254 | Automated conveyance system maintenance | Sally Day Mahoney, Frank Higgins, Yosef Haimes, Mick Maurer, Tony Black +1 more | 2020-03-24 |
| 10577221 | Imaging inspection systems and methods for elevator landing doors | Sally Day Mahoney, Frank Higgins | 2020-03-03 |
| 10577222 | Coded elevator inspection and positioning systems and methods | Daniel M. Tripp, Sally Day Mahoney, Frank Higgins | 2020-03-03 |