Donald L. Stewart Jr.

Person

Greensburg, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the removal of salts from aluminum dross
- Patent number 5,227,143
- Issue date Jul 13, 1993
- Aluminum Company of America
- Donald L. Stewart
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for the recovery of values from secondary aluminum dross
- Patent number 5,198,200
- Issue date Mar 30, 1993
- Aluminum Company of America
- Daniel Yerushalmi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Salt-based melting process
- Patent number 5,057,194
- Issue date Oct 15, 1991
- Aluminum Company of America
- Donald L. Stewart
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Continuous salt-based melting process
- Patent number 4,761,207
- Issue date Aug 2, 1988
- Aluminum Company of America
- Donald L. Stewart
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Aluminum-lithium scrap recovery
- Patent number 4,758,316
- Issue date Jul 19, 1988
- Aluminum Company of America
- Donald L. Stewart
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Method for preventing the undesirable condensation of aluminum chlo...
- Patent number 4,385,964
- Issue date May 31, 1983
- Aluminum Company of America
- Roger C. Johnson
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Fractional distillation process for the production of aluminum chlo...
- Patent number 4,349,420
- Issue date Sep 14, 1982
- Aluminum Company of America
- Donald L. Stewart
- C01 - INORGANIC CHEMISTRY

Donald L. Stewart Jr.

Person

Patents Grantslast 30 patents

Process for the removal of salts from aluminum dross

Process for the recovery of values from secondary aluminum dross

Salt-based melting process

Continuous salt-based melting process

Aluminum-lithium scrap recovery

Method for preventing the undesirable condensation of aluminum chlo...

Fractional distillation process for the production of aluminum chlo...