Derek Christopher Opseth

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Indian Head, CA

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Patents Grantslast 30 patents

Information Patent Grant
Dual material agricultural delivery system for seeder
- Patent number 6,986,313
- Issue date Jan 17, 2006
- Vale Farms Ltd.
- James William Halford
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Hydraulic compression system for seeder
- Patent number 6,142,085
- Issue date Nov 7, 2000
- Vale Farms Ltd.
- Kenneth Wayne Drever
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING

Patents Applicationslast 30 patents

Information Patent Application
Dual material agricultural delivery system for seeder
- Publication number 20050045080
- Publication date Mar 3, 2005
- James William Halford
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING