David W. Heckendorf

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Queensland, AU

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for high speed grading
- Patent number 6,615,929
- Issue date Sep 9, 2003
- Savannah Smooth Roads, LLC
- David W. Heckendorf
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Disc plough improvements
- Patent number 6,213,220
- Issue date Apr 10, 2001
- Savannah Forestry Equipment, Inc.
- David W Heckendorf
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
High speed grader
- Patent number 6,206,106
- Issue date Mar 27, 2001
- Savannah Forestry Equipment, LLC
- David W Heckendorf
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Soil preparation for planting tool and method
- Patent number 6,102,130
- Issue date Aug 15, 2000
- David W. Heckendorf
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING

Patents Applicationslast 30 patents

Information Patent Application
Spot mounder
- Publication number 20020092208
- Publication date Jul 18, 2002
- David W. Heckendorf
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
Method and apparatus for high speed grading
- Publication number 20020014341
- Publication date Feb 7, 2002
- David W. Heckendorf
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING