Issued Patents All Time
Showing 25 most recent of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428264 | Elevator management system that transmits combined operational and position data to an elevator management center | Tadeusz Pawel Witczak, Nikola Trcka | 2025-09-30 |
| 12421079 | Elevator monitoring device with varying wireless transmission power based on elevator car position | Tadeusz Pawel Witczak, Yrinee Michaelidis | 2025-09-23 |
| 12384655 | Electrical power transmission to elevator system cars | Enrico Manes, Atsushi Yamada, Suman Dwari, Stephen Savulak, Ronnie E. Thebeau +1 more | 2025-08-12 |
| 12297080 | Vibration monitoring beacon mode detection and transition | Tadeusz Pawel Witczak, Derk Oscar Pahlke, Yrinee Michaelidis | 2025-05-13 |
| 12280987 | Device and method for monitoring an elevator system | Derk Oscar Pahlke, Tadeusz Pawel Witczak, Yrinee Michaelidis | 2025-04-22 |
| 12162723 | Elevator car position determination | Tadeusz Pawel Witczak, Derk Oscar Pahlke | 2024-12-10 |
| 12139374 | Method and device for monitoring an elevator system | Derk Oscar Pahlke, Tadeusz Pawel Witczak | 2024-11-12 |
| 11964848 | Elevator pit monitoring and integrity check of monitoring system | Randy Roberts, Johanna Whitwell | 2024-04-23 |
| 11912534 | Elevator pit safety net system | Randy Roberts, Johanna Whitwell, Kyler Vensel | 2024-02-27 |
| 11912533 | Vibration monitoring beacon mode detection and transition | Tadeusz Pawel Witczak, Derk Oscar Pahlke, Yrinee Michaelidis | 2024-02-27 |
| 11851305 | Elevator pit safety net system | Randy Roberts, Johanna Whitwell, Kyler Vensel | 2023-12-26 |
| 11827074 | Transport refrigeration unit architecture and controls for smart grid optimization and integration | Ivan Rydkin, Robert A. Chopko | 2023-11-28 |
| 11767194 | Elevator car and door motion monitoring | Tadeusz Pawel Witczak, Derk Oscar Pahlke, Nikola Trcka, Yrinee Michaelidis | 2023-09-26 |
| 11724910 | Monitoring of conveyance system vibratory signatures | Tadeusz Pawel Witczak, Ezhil Nanjappan, Yrinee Michaelidis | 2023-08-15 |
| 11613445 | Vibration monitoring beacon mode detection and transition | Tadeusz Pawel Witczak, Derk Oscar Pahlke, Yrinee Michaelidis | 2023-03-28 |
| 11584614 | Elevator sensor system floor mapping | Tadeusz Pawel Witczak, Ezhil Nanjappan, Derk Oscar Pahlke, Yrinee Michaelidis | 2023-02-21 |
| 11548761 | Detecting elevator mechanics in elevator systems | Stella M. Oggianu, Ankit Gupta, Tadeusz Pawel Witczak, Vineet Srivastava | 2023-01-10 |
| 11518650 | Variable thresholds for an elevator system | Tadeusz Pawel Witczak, Ezhil Nanjappan, Derk Oscar Pahlke | 2022-12-06 |
| 11318807 | Transport refrigeration unit | Robert A. Chopko, Garrison S. Moseley, Ciara Poolman, Ivan Rydkin | 2022-05-03 |
| 11214466 | Monitoring systems for passenger conveyors | Tadeusz Pawel Witczak, Nikola Trcka, Philipp Schedl, Robert S. Takacs | 2022-01-04 |
| 11153004 | Conveyance system data transfer | Stella M. Oggianu, Tadeusz Pawel Witczak, Pawel Skiba | 2021-10-19 |
| 11076338 | Conveyance system data transfer | Tadeusz Pawel Witczak | 2021-07-27 |
| 10976424 | Automatic determination of position and orientation of elevator device entry terminals and hallway fixtures | Tadeusz Pawel Witczak, Stella M. Oggianu | 2021-04-13 |
| 10825337 | Autonomous commissioning and inspection of alarm systems | Marcin Piech, Tadeusz Pawel Witczak, Stella M. Oggianu, Srinivasa Reddy Pilli, Vinay Kumar Vinnakota +1 more | 2020-11-03 |
| 10827238 | Elevator door sensor integrated with a long range communication gateway | Tadeusz Pawel Witczak, Stella M. Oggianu | 2020-11-03 |