George W. Pratt

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Cedar Rapids, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Hydrophilic mushroom growth supplement and method of using same
- Patent number 4,990,173
- Issue date Feb 5, 1991
- Penford Products Co.
- Hirschel A. Katz
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Method of preparing mushroom growing supplements from corn gluten meal
- Patent number 4,764,199
- Issue date Aug 16, 1988
- Penford Products
- George W. Pratt
- C05 - FERTILISERS MANUFACTURE THEREOF