Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8434599 | Multiple car hoistway including car separation control | Cheng-Shuo Wang, Arthur Hsu, Hansoo Shim, SeongRak Jeong | 2013-05-07 |
| 8136635 | Method and system for maintaining distance between elevator cars in an elevator system with multiple cars in a single hoistway | Theresa M. Christy, Randall Keith Roberts, Harold Terry, Mauro J. Atalla, Arthur Hsu +1 more | 2012-03-20 |