Apparatus and method utilizing cells to provide lift in...

Apparatus for collecting solar energy at high altitudes and on f

At least partially bouyant vehicle with movable solar panel...

Buoyancy control system for an airship

Convertible airship

Cruise airship with an anchoring device and a helium...

Delta-winged hybrid airship

Device and method for affecting local climatic parameters

Direct mounted propulsion for non-rigid airships

Dirigible airship

Dirigible airship

Dirigible, especially non-rigid dirigible

Dual hull airship controlled by thrust vectoring

Dual hull airship controlled by thrust vectoring

Electrical energy depletion/collection system

Evacuated balloon for solar energy collection

Fluid container with self-sealing capability

High altitude two balloon airship

High-altitude long-endurance airship

Highly maneuverable powered airship