Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8356697 | Elevator safety system and method | John J. Kriss, Fred R. Spielman, Daniel Greer | 2013-01-22 |
| 7753175 | Elevator car having an angled underslung roping arrangement | John Ferrisi, Kevin Gleason, Daniel Greer, Robert Hammell, Dave Jarvis +5 more | 2010-07-13 |