Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10984622 | Access control system with feedback to portable electronic device | Florian Troesch, Serhiy Serbin | 2021-04-20 |
| 10068395 | Access control system | — | 2018-09-04 |
| 9033114 | Determining elevator car position | — | 2015-05-19 |
| 5219042 | Using fuzzy logic to determine the number of passengers entering and exiting an elevator car | Siddiq A. Sattar, David J. Sirag, Jr. | 1993-06-15 |