| 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 |