Derek G. E. Kerfoot

Person

Fort Saskatchewan, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Process for upgrading copper sulphide residues containing nickel an...
- Patent number 5,993,514
- Issue date Nov 30, 1999
- Dynatec Corporation
- Manher Mohan Makwana
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for the separation of cobalt from nickel
- Patent number 5,468,281
- Issue date Nov 21, 1995
- Sherritt Gordon Limited
- Derek G. E. Kerfoot
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Upgrading copper sulphide residues containing nickel and arsenic
- Patent number 5,344,479
- Issue date Sep 6, 1994
- Sherritt Gordon Limited
- Derek G. E. Kerfoot
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Recovery of platinum group metals from nickel-copper-iron matte
- Patent number 4,571,262
- Issue date Feb 18, 1986
- Sherritt Gordon Mines Limited
- Derek G. E. Kerfoot
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Removal of selenium from acidic copper/nickel solutions
- Patent number 4,374,808
- Issue date Feb 22, 1983
- Sherritt Gordon Mines Limited
- Donald R. Weir
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Hydrometallurgical treatment of copper-bearing hematite residue
- Patent number 4,338,168
- Issue date Jul 6, 1982
- Noranda Mines Limited
- Robert W. Stanley
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Removal of selenium (IV) and (VI) from acidic copper sulphate solut...
- Patent number 4,330,508
- Issue date May 18, 1982
- Sherritt Gordon Mines Limited
- Donald R. Weir
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Photodeposition of metals on a non-conductive substrate
- Patent number 4,006,269
- Issue date Feb 1, 1977
- Canada Wire and Cable Limited
- Derek G. E. Kerfoot
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Hydrometallurgical production of technical grade molybdic oxide fro...
- Patent number 3,988,418
- Issue date Oct 26, 1976
- Noranda Mines Limited
- Derek G. E. Kerfoot
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Derek G. E. Kerfoot

Person

Patents Grantslast 30 patents

Process for upgrading copper sulphide residues containing nickel an...

Process for the separation of cobalt from nickel

Upgrading copper sulphide residues containing nickel and arsenic

Recovery of platinum group metals from nickel-copper-iron matte

Removal of selenium from acidic copper/nickel solutions

Hydrometallurgical treatment of copper-bearing hematite residue

Removal of selenium (IV) and (VI) from acidic copper sulphate solut...

Photodeposition of metals on a non-conductive substrate

Hydrometallurgical production of technical grade molybdic oxide fro...