Issued Patents All Time
Showing 25 most recent of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11548758 | Health monitoring systems and methods for elevator systems | Randy Roberts, Edward Piedra | 2023-01-10 |
| 11542123 | Elevator system including a motorized module | Kiron Bhaskar, Sam Thieu Wong, Randy Roberts, Meghan Mastriano, Brad Guilani | 2023-01-03 |
| 11524873 | Ropeless elevator wheel force releasing system | Randy Roberts, Kiron Bhaskar, Brad Guilani | 2022-12-13 |
| 11377323 | 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 | 2022-07-05 |
| 11332344 | Elevator car frame assembly | Richard J. Ericson, Meghan Mastriano, Loi Cheng | 2022-05-17 |
| 11299374 | 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 | 2022-04-12 |
| 11214464 | Elevator seismic performance apparatus | Richard J. Ericson, Meghan Mastriano, Loi Cheng | 2022-01-04 |
| 10981752 | Modular transfer station | Tadeusz Pawel Witczak, Richard J. Ericson, Richard Ivanic, Kevin Neville, Sven Swanson | 2021-04-20 |
| 10941020 | Deflector sheave bracket for offset bedplate | Bruce St. Pierre | 2021-03-09 |
| 10899580 | Elevator cab suspension assembly for a double deck elevator | Walter Thomas Schmidt, Enrico Manes, Shihemn Chen, Zaffir A. Chaudhry, Xiaodong Luo +4 more | 2021-01-26 |
| 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 |
| 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 |
| 9919900 | Bedplate for elevator system | Bruce St. Pierre, Kiron Bhaskar | 2018-03-20 |
| 8302740 | Integrated support for elevator machine, sheaves and terminations | Bruce St. Pierre, Leandre Adifon, Barry G. Blackaby | 2012-11-06 |
| 7670240 | Elevator belt assembly with noise reducing groove arrangement | John T. Pitts, Patricia Derwinski, Hugh J. O'Donnell | 2010-03-02 |
| 7150342 | Elevator structure mounting system having horizontal member for reducing building loads at top of hoistway | Leandre Adifon, Richard N. Fargo, Thomas E. Landry, James A. Rivera, Bruce St. Pierre | 2006-12-19 |
| 6805222 | Method and apparatus for adjusting steering angle for elevator sheave | Bruce St. Pierre, Boris G. Traktovenko, Mark F. Orelup | 2004-10-19 |