David E. Weatherby

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Rockville, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Soil or rock nail wall with outer face and method of constructing t...
- Patent number 5,588,784
- Issue date Dec 31, 1996
- Schnabel Foundation Company
- Ernest D. Brandl
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Concrete replacement wall and method of constructing the wall
- Patent number 4,911,582
- Issue date Mar 27, 1990
- Schnabel Foundation Company
- John J. Peirce
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
High capacity tieback installation method
- Patent number 4,718,791
- Issue date Jan 12, 1988
- Schnabel Foundation Company
- David E. Weatherby
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Earth retaining method
- Patent number 4,561,804
- Issue date Dec 31, 1985
- Schnabel Foundation Company
- David E. Weatherby
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Earth retaining method and structure
- Patent number 4,369,004
- Issue date Jan 18, 1983
- Schnabel Foundation Company
- David E. Weatherby
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Corrosion protected earth tieback
- Patent number 4,124,983
- Issue date Nov 14, 1978
- Schnabel Foundation Company
- David E. Weatherby
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING