Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10532910 | Underslung elevator car configuration | Minglun Qiu, Anying Shen, Richard S. Blakelock, Jay S. Lengacher, Scott E. McCullough +2 more | 2020-01-14 |
| 9701515 | Underslung elevator car configuration | Minglun Qiu, Anying Shen, Richard S. Blakelock, Jay S. Lengacher, Scott E. McCullough +2 more | 2017-07-11 |