Frederick Anthony Schaefer

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Colorado Springs, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method of processing electric arc furnace dust
- Patent number 7,227,882
- Issue date Jun 5, 2007
- Edw. C. Levy Co.
- Frederick Anthony Schaefer
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for treating waste oil
- Patent number 7,045,038
- Issue date May 16, 2006
- Industrial Microwave Technologies, Inc.
- Frederick Anthony Schaefer
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

Information Patent Application
System and method of processing electric arc furnace dust
- Publication number 20050083988
- Publication date Apr 21, 2005
- Frederick Anthony Schaefer
- C21 - METALLURGY OF IRON