Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10494228 | Guiding devices for elevator systems having roller guides and motion sensors | Randy Roberts, Patricia Derwinski, Philip R. James | 2019-12-03 |
| 10486940 | Alignment system for an elevator car | Tadeusz Pawel Witczak, Zbigniew Piech, Richard J. Ericson, Richard E. Kulak | 2019-11-26 |
| 10442659 | Electromagnetic brake system for elevator application | Amir Lotfi, James L. Hubbard | 2019-10-15 |
| 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 |
| 10329122 | H frame for a double deck elevator | Walter Thomas Schmidt, Enrico Manes, Zaffir A. Chaudhry, Luke A. Mishler, Xiaodong Luo +4 more | 2019-06-25 |