Donald Fergusson Stewart

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Doncaster, AU

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Patents Grantslast 30 patents

Information Patent Grant
Beneficiation of the non-ferrous metal values of oxide-containing m...
- Patent number 4,047,934
- Issue date Sep 13, 1977
- ICI Australia Limited
- Leslie John Pollard
- C21 - METALLURGY OF IRON
Information Patent Grant
Roasting process for the direct reduction of ores
- Patent number 4,042,375
- Issue date Aug 16, 1977
- ICI Australia Limited
- Anwyn Margaret Martin
- C21 - METALLURGY OF IRON
Information Patent Grant
Ilmenite coated pellet and process for reducing same
- Patent number 3,941,583
- Issue date Mar 2, 1976
- ICI Australia Limited
- Anwyn Margaret Martin
- C21 - METALLURGY OF IRON