Leonard W. Pokallus

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Louisville, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of making high density, fusion cast basic metallurgical refr...
- Patent number 4,657,878
- Issue date Apr 14, 1987
- Corhart Refractories
- Thomas A. Clishem
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Extrusion die
- Patent number 4,465,454
- Issue date Aug 14, 1984
- Corning Glass Works
- Francis R. Duerr
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Collapsible core and method of using same
- Patent number 4,362,686
- Issue date Dec 7, 1982
- Corning Glass Works
- Thomas A. Clishem
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Manufacture of improved fused cast refractory
- Patent number 4,107,255
- Issue date Aug 15, 1978
- Corning Glass Works
- Thomas A. Clishem
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES