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Edward F. G. Milner
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Trail, CA
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Patents Grants
last 30 patents
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Patent Grant
Method for the preparation of copper arsenate
Patent number
5,002,748
Issue date
Mar 26, 1991
Cominco Ltd.
David L. Jones
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for making low alpha count lead
Patent number
4,915,802
Issue date
Apr 10, 1990
Comino Ltd.
John A. Dunlop
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for making low alpha count lead
Patent number
4,887,492
Issue date
Dec 19, 1989
Cominco Electronic Materials Inc.
John A. Dunlop
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Hydrometallurgical process for recovering copper and other metal va...
Patent number
4,097,271
Issue date
Jun 27, 1978
Cominco Ltd.
Godefridus M. Swinkels
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Hydrometallurgical process for treating metal sulfides containing l...
Patent number
4,082,629
Issue date
Apr 4, 1978
Cominco Ltd.
Edward F. G. Milner
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Recovery of copper and zinc as sulfides from copper-iron sulfides
Patent number
4,049,770
Issue date
Sep 20, 1977
Sherritt Gordon Mines Limited
Godefridus Maria Swinkels
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Production of copper and sulfur from copper-iron sulfides
Patent number
3,964,901
Issue date
Jun 22, 1976
Sherritt Gordon Mines Limited
Godefridus Maria Swinkels
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...