Issued Patents 2019
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10486940 | Alignment system for an elevator car | Bruce P. Swaybill, Zbigniew Piech, Richard J. Ericson, Richard E. Kulak | 2019-11-26 |
| 10407275 | Detection and control system for elevator operations | Yehia F. Khalil, Richard N. Fargo, Randall Keith Roberts, Randall S. Dube, Gary L Nuschler +5 more | 2019-09-10 |
| 10336577 | Braking system for an elevator system | Zbigniew Piech | 2019-07-02 |
| 10294074 | Elevator recovery car | Mark Olthuis, Xiaodong Luo, Zbigniew Piech, Randall Keith Roberts | 2019-05-21 |
| 10268166 | Intelligent surface systems for building solutions | Marcin Piech, Zbigniew Piech, Daryl J. Marvin, Stella M. Oggianu | 2019-04-23 |
| 10246298 | Ropeless elevator system | Zbigniew Piech | 2019-04-02 |
| 10196233 | Elevator system assigning cars to floor groups | Zbigniew Piech | 2019-02-05 |
| 10189679 | Elevator car power supply | Wojciech Szelag, Cezary Jedryczka, Bryan Robert Siewert, Zbigniew Piech | 2019-01-29 |