Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10526166 | Method for operating an elevator with multiple shafts and cars | Stefan Gerstenmeyer, Markus Jetter | 2020-01-07 |
| 8123002 | Elevator rope positioning apparatus | Rory Smith, Stefan Kaczmarczyk, Jim Nickerson | 2012-02-28 |
| 7261184 | Elevator system and triangulated support structure for the same | John W. Koshak | 2007-08-28 |
| 6854164 | Termination device for an aramid-based elevator rope | Robert Sweet | 2005-02-15 |
| 6845849 | Height adjustment clip for an elevator door | — | 2005-01-25 |
| 6830355 | Refractive sheet lighting assembly for an elevator | John W. Koshak, Aranggi Soemardjan | 2004-12-14 |
| 6659514 | Swinging elevator hatchway door interlock | — | 2003-12-09 |