Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11060454 | Method of regulating air pressure in anti-icing system | Zhijun Zheng, Michael D. Greenberg | 2021-07-13 |
| 10934885 | System and method for controlling dual starter air valve | Michael D. Greenberg, John M. Dehais | 2021-03-02 |
| 10927963 | Direct-acting valve | Zhijun Zheng, Michael D. Greenberg | 2021-02-23 |