Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7880964 | Space telescope with free-flying secondary and receiver elements | Richard Van Allen, Paul H. Graven | 2011-02-01 |
| 7428098 | Structureless space telescope | Richard Van Allen, Paul H. Graven | 2008-09-23 |
| 6059235 | Interplanetary transfer method | Hans F. Meissinger, Simon Dawson | 2000-05-09 |
| 5687084 | Satellite orbit maintenance system | — | 1997-11-11 |
| 5528502 | Satellite orbit maintenance system | — | 1996-06-18 |
| 5109346 | Autonomous spacecraft navigation system | — | 1992-04-28 |
| 4730798 | Autonomous spacecraft controller and related method | — | 1988-03-15 |