Barry N. Doyle

Follow

Person

Edmonton, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Recovery of metals from sulphidic material
- Patent number 5,380,354
- Issue date Jan 10, 1995
- Sherritt Inc.
- Michael E. Chalkley
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Recovery of zinc from zinc-containing sulphidic material
- Patent number 4,832,925
- Issue date May 23, 1989
- Sherritt Gordon Mines Limited
- Donald R. Weir
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for separately recovering zinc and lead values from zinc an...
- Patent number 4,545,963
- Issue date Oct 8, 1985
- Sherritt Gordon Mines Limited
- Donald R. Weir
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...