Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11161714 | Landing identification system to determine a building landing reference for an elevator | Sally Day Mahoney | 2021-11-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11161714 | Landing identification system to determine a building landing reference for an elevator | Sally Day Mahoney | 2021-11-02 |