Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10384797 | In-flight transfer of reactant from a towing or carrying airplane to an attached rocket or rocketplane | John A. Burgener, Daniel L. DeLong | 2019-08-20 |
| 10106273 | In-flight transfer of reactant from a towing or carrying airplane to an attached rocket or rocketplane | John A. Burgener, Daniel L. DeLong | 2018-10-23 |
| 6119985 | Reusable rocket-propelled high altitude airplane and method and apparatus for mid-air oxidizer transfer to said airplane | Robert M. Zubrin | 2000-09-19 |
| D405750 | Reuseable rocket airplane | Robert M. Zubrin, Daniel Paul Raymer | 1999-02-16 |