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Henry W. Rahn
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Pittsburgh, PA, US
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last 30 patents
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Patent Grant
Cathodic current conducting elements for use in aluminum reduction...
Patent number
4,231,853
Issue date
Nov 4, 1980
PPG Industries, Inc.
Henry W. Rahn
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Cathode element for use in aluminum reduction cell
Patent number
4,177,128
Issue date
Dec 4, 1979
PPG Industries, Inc.
Henry W. Rahn
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Electrode unit
Patent number
4,036,727
Issue date
Jul 19, 1977
PPG Industries, Inc.
Henry W. Rahn
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Ammonia solutions of sodium azide
Patent number
3,984,227
Issue date
Oct 5, 1976
PPG Industries, Inc.
William C. McConnell
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Grant
Electrode unit
Patent number
3,984,304
Issue date
Oct 5, 1976
PPG Industries, Inc.
Henry W. Rahn
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Electrolytic cell having hydrogen gas disengaging apparatus
Patent number
3,968,021
Issue date
Jul 6, 1976
PPG Industries, Inc.
Henry W. Rahn
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR