Douglas H. GREINER

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Stevenson Ranch, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Ballonet measurement system
- Patent number 9,611,024
- Issue date Apr 4, 2017
- Lockheed Martin Corporation
- Douglas H. Greiner
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Retracting air cushioned landing system for air vehicles
- Patent number 8,177,161
- Issue date May 15, 2012
- Lockheed Martin Corporation
- John P. Morehead
- B60 - VEHICLES IN GENERAL
Information Patent Grant
System and methods for buoyancy management in an airship
- Patent number 8,167,240
- Issue date May 1, 2012
- Lockheed Martin Corporation
- Douglas H. Greiner
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Retracting air cushioned landing system for air vehicles
- Patent number 8,016,229
- Issue date Sep 13, 2011
- Lockheed Martin Corporation
- Douglas H. Greiner
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
BALLONET MEASUREMENT SYSTEM
- Publication number 20130035894
- Publication date Feb 7, 2013
- Lockheed Martin Corporation
- Douglas H. GREINER
- G01 - MEASURING TESTING
Information Patent Application
RETRACTING AIR CUSHIONED LANDING SYSTEM FOR AIR VEHICLES
- Publication number 20120043416
- Publication date Feb 23, 2012
- Lockheed Martin Corporation
- John P. MOREHEAD
- B60 - VEHICLES IN GENERAL
Information Patent Application
System and Methods for Buoyancy Management in an Airship
- Publication number 20100230533
- Publication date Sep 16, 2010
- Douglas H. Greiner
- B60 - VEHICLES IN GENERAL
Information Patent Application
Retracting Air Cushioned Landing System for Air Vehicles
- Publication number 20100001128
- Publication date Jan 7, 2010
- John P. Morehead
- B60 - VEHICLES IN GENERAL