Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7883634 | Elevator load bearing member having a jacket with at least one traction-enhancing exterior surface | John P. Wesson, William A. Veronesi, Hugh J. O'Donnell, John T. Pitts, William C. Perron +2 more | 2011-02-08 |
| 7878306 | Elevator system without a moving counterweight | Bryan Robert Siewert, Richard L. Hollowell | 2011-02-01 |