Leland L. Frederick

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Florence, AL, US

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Patents Grantslast 30 patents

Information Patent Grant
Production of ammonium potassium polyphosphates
- Patent number 4,308,048
- Issue date Dec 29, 1981
- Tennessee Valley Authority
- Richard C. Sheridan
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Production of ammonium potassium polyphosphates
- Patent number T996001
- Issue date Jul 1, 1980
- Tennessee Valley Authority
- Richard C. Sheridan
- 071 - Chemistry: fertilizers
Information Patent Grant
Purification of wet-process phosphoric acid with methanol and ammonia
- Patent number 3,975,178
- Issue date Aug 17, 1976
- Tennessee Valley Authority
- John F. McCullough
- C05 - FERTILISERS MANUFACTURE THEREOF