Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6722613 | Kite having flapping wings | Douglas E. Phillips | 2004-04-20 |
| 4457478 | Keel guided acrobatic kite and control apparatus therefor | Julius M. Christoffel, Jr. | 1984-07-03 |