John S. Letcher Jr.

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Southwest Harbor, ME, US

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Patents Grantslast 30 patents

Information Patent Grant
System of relational entities for object-oriented computer-aided ge...
- Patent number 5,856,828
- Issue date Jan 5, 1999
- Aerohydro, Inc.
- John S. Letcher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System of relational entities for object-oriented computer-aided ge...
- Patent number 5,627,949
- Issue date May 6, 1997
- John S. Letcher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System of relational entities for object-oriented computer-aided ge...
- Patent number 5,581,672
- Issue date Dec 3, 1996
- Aerohydro, Inc.
- John S. Letcher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for lofting blanks and compounding plates for shell structures
- Patent number 4,953,094
- Issue date Aug 28, 1990
- Aerohydro, Inc.
- John S. Letcher
- G05 - CONTROLLING REGULATING