John O. Black

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Detroit, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Vertical ascending and descending airplane
- Patent number 4,187,999
- Issue date Feb 12, 1980
- John O. Black
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Helicopter type aircraft with ground effect structure
- Patent number 4,032,084
- Issue date Jun 28, 1977
- John O. Black
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Free wing for convertible aircraft structure
- Patent number 3,934,843
- Issue date Jan 27, 1976
- John O. Black
- B64 - AIRCRAFT AVIATION COSMONAUTICS