Donald P. Allen

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Niagara Falls, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Graphitization furnace
- Patent number 5,299,225
- Issue date Mar 29, 1994
- Sigri Great Lakes Carbon Corp.
- Berch Y. Karagoz
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Water trap manifold for water cooled electrodes
- Patent number 4,802,188
- Issue date Jan 31, 1989
- Great Lakes Carbon Corporation
- Berch Y. Karagoz
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Scalloped nipple for water-cooled electrodes
- Patent number 4,689,799
- Issue date Aug 25, 1987
- Berch Y. Karagoz
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR