Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11635045 | Injector element for rocket engine | Douglas S. Parker, Daniel P. Cap | 2023-04-25 |
| 10975805 | Ground hydraulic system hypergolic slug injection | Douglas S. Parker | 2021-04-13 |
| 9404441 | Low velocity injector manifold for hypergolic rocket engine | William S. Brown, Thomas M. Walczuk, Rodney Noble | 2016-08-02 |