Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7878449 | Mass transfer system for stabilizing an airship and other vehicles subject to pitch and roll moments | Michael Walden | 2011-02-01 |
| 7490794 | Airship having a central fairing to act as a stall strip and to reduce lift | — | 2009-02-17 |
| 7487936 | Buoyancy control system for an airship | — | 2009-02-10 |
| 7350749 | Mass transfer system for stabilizing an airship and other vehicles subject to pitch and roll moments | Michael Walden | 2008-04-01 |
| 7185848 | Mass transfer system for stabilizing an airship and other vehicles subject to pitch and roll moments | Michael Walden | 2007-03-06 |
| 7156342 | Systems for actively controlling the aerostatic lift of an airship | Michael Walden | 2007-01-02 |