Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11148906 | Elevator vandalism monitoring system | — | 2021-10-19 |
| 11014780 | Elevator sensor calibration | Sudarshan N. Koushik, Paul R. Braunwart, Charles C. Coffin | 2021-05-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11148906 | Elevator vandalism monitoring system | — | 2021-10-19 |
| 11014780 | Elevator sensor calibration | Sudarshan N. Koushik, Paul R. Braunwart, Charles C. Coffin | 2021-05-25 |