Manher Mohan Makwana

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Sherwood Park, CA

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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
Purification of elemental sulphur
- Patent number 5,711,929
- Issue date Jan 27, 1998
- 698638 Alberta Ltd.
- Michael E. Chalkley
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Purification of elemental sulphur
- Patent number 5,403,571
- Issue date Apr 4, 1995
- Sherritt Gordon Limited
- Michael E Chalkley
- C01 - INORGANIC CHEMISTRY