Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12259134 | Hydrogen liquid oxygen combined cycle engine | David Lei Ma | 2025-03-25 |
| 12215608 | Hydrogen-oxygen fueled powerplant with water and heat recovery | Neil J. Terwilliger, Joseph B. Staubach, David L. Ma | 2025-02-04 |