Alvin Maskwa

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Edmonton, CA

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for sampling a core of tar sand
- Patent number 4,372,174
- Issue date Feb 8, 1983
- Petro-Canada Exploration Inc.
- Lubomyr M. Cymbalisty
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Grant
Beneficiation of heavy minerals from bituminous sands residues by d...
- Patent number 4,225,422
- Issue date Sep 30, 1980
- Petro-Canada Exploration Inc.
- Lloyd Trevoy
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Method for concentrating heavy minerals in the solids tailings from...
- Patent number 4,150,093
- Issue date Apr 17, 1979
- Her Majesty the Queen in right of Canada, as represented by the Minister of E...
- Victor Kaminsky
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for concentrating heavy minerals in the solids tailings from...
- Patent number 4,138,467
- Issue date Feb 6, 1979
- Her Majesty the Queen in right of Canada, as represented by the Minister of E...
- Victor Kaminsky
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...