David J. Gelhar

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DeGraff, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Product distributor
- Patent number D549755
- Issue date Aug 28, 2007
- Gary W. Wietgrefe
- D15 - Machines not elsewhere specified
Information Patent Grant
Material spreader and method for using same
- Patent number 7,191,965
- Issue date Mar 20, 2007
- Roto-Mix, LLC
- Benjamin R. Neier
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Material spreader and method for using same
- Patent number 7,172,137
- Issue date Feb 6, 2007
- Roto-Mix, LLC
- Benjamin R. Neier
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING

Patents Applicationslast 30 patents

Information Patent Application
Material spreader and method for using same
- Publication number 20060169806
- Publication date Aug 3, 2006
- JSI INDUSTRIES INC.
- Benjamin R. Neier
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
Material spreader and method for using same
- Publication number 20050067515
- Publication date Mar 31, 2005
- J-STAR INDUSTRIES, INC.
- Benjamin R. Neier
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING