John R. Fellnor

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Yardley, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for drying and preheating small metallic parti...
- Patent number 4,260,373
- Issue date Apr 7, 1981
- Combustion Engineering, Inc.
- John R. Fellnor
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Scrap preheater modular roof assembly
- Patent number 4,162,891
- Issue date Jul 31, 1979
- Melting Systems, Incorporated
- John R. Fellnor
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Method and apparatus for drying and preheating small metallic parti...
- Patent number 4,133,635
- Issue date Jan 9, 1979
- Combustion Engineering, Inc.
- John R. Fellnor
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Scrap preheating system
- Patent number 4,083,675
- Issue date Apr 11, 1978
- Melting Systems, Inc.
- John R. Fellnor
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Scrap preheating system
- Patent number 3,985,497
- Issue date Oct 12, 1976
- Melting Systems, Inc.
- John R. Fellnor
- F27 - FURNACES KILNS OVENS RETORTS