Issued Patents 2021
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11124390 | Pressure sensitive mat | Fanping Sun, Joseph V. Mantese, Walter Thomas Schmidt, Goran Djuknic, Paul R. Braunwart +1 more | 2021-09-21 |
| 11117786 | Double deck elevator with linear actuator adjustment mechanism | Zaffir A. Chaudhry, Walter Thomas Schmidt | 2021-09-14 |
| 11001477 | Elevator linear propulsion system with cooling device | Ram Ranjan, Bryan Robert Siewert, Zbigniew Piech | 2021-05-11 |
| 10988348 | Escalator steps with strain sensors | Walter Thomas Schmidt, Charles C. Coffin, Shihemn Chen, Paul R. Braunwart, Anais Espinal +2 more | 2021-04-27 |
| 10934131 | Ropeless elevator control system | Shashank Krishnamurthy, Vladimir Blasko | 2021-03-02 |
| 10927915 | Spring useful for elevator safety device | Robert A. Barth, Xiaodong Luo, Shihemn Chen, Daryl J. Marvin, Michael A. Klecka +1 more | 2021-02-23 |
| 10899580 | Elevator cab suspension assembly for a double deck elevator | Walter Thomas Schmidt, Shihemn Chen, Zaffir A. Chaudhry, Xiaodong Luo, Luke A. Mishler +4 more | 2021-01-26 |