Donald K. Kofluk

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Fort Saskatchewan, CA

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Patents Grantslast 30 patents

Information Patent Grant
Recovery of zinc from sulphidic concentrates
- Patent number 5,770,170
- Issue date Jun 23, 1998
- 698638 Alberta Ltd.
- Michael J. Collins
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Hydrometallurgical process for the extraction of copper from sulphi...
- Patent number 5,730,776
- Issue date Mar 24, 1998
- 698638 Alberta Ltd.
- Michael J. Collins
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Recovery of zinc from sulphidic concentrates
- Patent number 5,651,947
- Issue date Jul 29, 1997
- 698638 Alberta Ltd.
- Michael J. Collins
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...