Patents per Year
Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 10479651 | Cooling of machine for elevator system | — | 2019-11-19 | |
| 10081518 | Elevator machine and stator support structure | James L. Hubbard | 2018-09-25 | |
| 9688510 | Hydraulic brake system for elevator | — | 2017-06-27 | |
| 9067763 | Bearing cartridge and elevator machine assembly | — | 2015-06-30 | |
| 8640426 | Thermal barriers of elevator door roller and rail | Jinliang Wang, Xiaomei Yu, Mikhail B. Gorbounov, John M. Milton-Benoit | 2014-02-04 | |
| 6742769 | Elevator sheave for use with flat ropes | Pedro S. Baranda, John T. Pitts, Richard L. Hollowell, John P. Wesson, Douglas E. Logan +1 more | 2004-06-01 | $41,844,000 |
| 6601828 | Elevator hoist machine and related assembly method | James L. Hubbard | 2003-08-05 | $49,012,000 |