Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10518861 | Continuous fiber reinforcement for airship construction | — | 2019-12-31 |
| 9611024 | Ballonet measurement system | Douglas H. Greiner, Brian T. Holm-Hansen | 2017-04-04 |
| 8800628 | Self-propelled airship hull repair system | Nicholas Piini, Kyle Alfred Hofstatter, Eric Younge | 2014-08-12 |
| 8783602 | System and method for furling an air cushion landing system | Malcolm Cox, Charles Eden, Robert R. Boyd, Nicholas Piini | 2014-07-22 |
| 8177161 | Retracting air cushioned landing system for air vehicles | Douglas H. Greiner, Renee Pasman, Robert R. Boyd | 2012-05-15 |
| 8016229 | Retracting air cushioned landing system for air vehicles | Douglas H. Greiner, Renee Pasman, Robert R. Boyd | 2011-09-13 |
| 6315242 | Propulsion system for a semi-buoyant vehicle with an aerodynamic | David Eichstedt, John B. Kalisz | 2001-11-13 |
| 6293493 | Pressure stabilized gasbag for a partially buoyant vehicle | David Eichstedt, John B. Kalisz | 2001-09-25 |
| 6196498 | Semi-buoyant vehicle with aerodynamic lift capability | David Eichstedt, John B. Kalisz | 2001-03-06 |