Douglas S. Bertke

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Coldwater, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Poultry feeder with feed conveyor control system
- Patent number 6,474,261
- Issue date Nov 5, 2002
- Val-Co Pax, Inc.
- Mark R. Turner
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING

Patents Applicationslast 30 patents

Information Patent Application
COLONY NEST EXPELLER
- Publication number 20250234844
- Publication date Jul 24, 2025
- Valco Industries, Inc.
- Philip E. RISSER
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
POULTRY FEEDER WITH FEED CONVEYOR CONTROL SYSTEM
- Publication number 20020152965
- Publication date Oct 24, 2002
- Mark R. Turner
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING