Issued Patents 2020
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10752466 | Transfer station for a ropeless elevator system with redundancy of subcomponents and parking zone | Cezary Jedryczka, Adam Marian Myszkowski, Tadeusz Pawel Witczak, Zbigniew Piech, Wojciech Szelag +2 more | 2020-08-25 |
| 10745247 | Elevator car guidance mechanism | Tadeusz Pawel Witczak, Richard N. Fargo, Enrico Manes, Zbigniew Piech, Richard J. Ericson +2 more | 2020-08-18 |
| 10737908 | Method and kit for retrofitting elevator machines with thrust bearing, and retrofitted elevator machine | Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard +5 more | 2020-08-11 |
| 10625984 | Counterweight for elevator system | Bruce St. Pierre, Daniel B. Davis, III | 2020-04-21 |
| 10618775 | Retrofitting an elevator machine with primary and secondary braking | Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard +5 more | 2020-04-14 |