Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12214994 | Brake disc releasing device, turning device, elevator rescue kit and method | Fengkun Zhu, Hongliang Wu | 2025-02-04 |
| 12054359 | Roller guide mounted elevator monitoring systems | — | 2024-08-06 |
| 11718501 | Elevator sheave wear detection | Kyle Martin | 2023-08-08 |
| 11667495 | Brake disc releasing device, turning device, elevator rescue kit and method | Fengkun Zhu, Hongliang Wu | 2023-06-06 |
| 11492230 | Sheave liner including wear indicators | — | 2022-11-08 |
| 11377323 | Retrofitting an elevator machine with primary and secondary braking | Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, Martin J. Hardesty +5 more | 2022-07-05 |
| 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, Martin J. Hardesty +5 more | 2022-04-12 |
| 11254544 | Friction liner and traction sheave | David R. Torlai, Peter Keyo | 2022-02-22 |
| 10766746 | Friction liner and traction sheave | David R. Torlai, Peter Keyo | 2020-09-08 |
| 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, Martin J. Hardesty +5 more | 2020-08-11 |
| 10618775 | Retrofitting an elevator machine with primary and secondary braking | Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, Martin J. Hardesty +5 more | 2020-04-14 |
| 10442659 | Electromagnetic brake system for elevator application | Amir Lotfi, Bruce P. Swaybill | 2019-10-15 |
| 10273119 | Elevator load weighing system | Ismail Agirman, Takashi Onodera | 2019-04-30 |
| 10214382 | Disk damping device | Wei Wei | 2019-02-26 |
| 10141817 | Cooling of machine for elevator system | Marco Venturini, Davide Tenti | 2018-11-27 |
| 10081518 | Elevator machine and stator support structure | Zlatko Strbuncelj | 2018-09-25 |
| 10017356 | Sheet metal guide rail for an elevator system | — | 2018-07-10 |
| 10000366 | Brake torque control | Daryl J. Marvin, Stephen R. Nichols, Harold Terry | 2018-06-19 |
| 9791009 | Brake torque monitoring and health assessment | Michael Garfinkel, Juan Antonio Illan, Robert D. Shepherd | 2017-10-17 |
| 9725281 | Elevator roller guide | Richard N. Fargo, John T. Pitts | 2017-08-08 |
| 9725282 | Elevator load bearing assembly including different sized load bearing members | Robin Mihekun Miller, Richard N. Fargo, Boris G. Traktovenko | 2017-08-08 |
| 9630805 | Non-linear stiffness roller assembly | Richard N. Fargo, Brad Guilani, Adrian D. West | 2017-04-25 |
| 9422133 | Elevator car control in a landing zone using a machine brake in response to undesired car movement | Pascal Rebillard, Nicolas Fonteneau, Gerard Sirigu, Gregor Stricker, Peter Herkel +4 more | 2016-08-23 |
| 8839911 | Elevator machine frame with noise reducing configuration | Stephen R. Nichols, Bruce W. Horne, Zbigniew Piech, Arthur Blanc | 2014-09-23 |
| 8104586 | Elevator motor brake torque measurement device | Boris G. Traktovenko, Robin Mihekun Miller | 2012-01-31 |