William H. Hockenberry Jr.

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Sioux Falls, SD, US

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Patents Grantslast 30 patents

Information Patent Grant
Containment dike assembly and method for construction thereof
- Patent number 5,882,142
- Issue date Mar 16, 1999
- Sioux Steel Company, Inc.
- Donald J. Siglin
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Wall-mounted foldable work bench
- Patent number D295007
- Issue date Apr 5, 1988
- Sioux Steel Company
- Robert E. Hardy
- D06 - Furnishings