National Institute for Metallurgy
Patent Applications and Registrations
Patent applications and USPTO patent grants for National Institute for Metallurgy.The latest application filed is for "leaching of sulphidic mattes containing non-ferrous metals and iron".
- National Institute for Metallurgy - Transvaal ZA
- National Institute for Metallurgy - Randburg ZA
- The National Institute for Metallurgy - ZA ZA
- National Institute for Metallurgy - Johannesburg ZA
| Patent | Date |
|---|---|
| Leaching of sulphidic mattes containing non-ferrous metals and iron Grant 4,431,613 - Verbaan February 14, 1 | 1984-02-14 |
| Leaching of zinc containing sulphide minerals Grant 4,330,379 - Verbaan May 18, 1 | 1982-05-18 |
| Control of electrical arc furnaces Grant 4,296,269 - Stewart , et al. October 20, 1 | 1981-10-20 |
| Selective ion exchange resins with pyridyl-imidazolyl chelating functional groups Grant 4,202,944 - Hancock , et al. May 13, 1 | 1980-05-13 |
| Process for the treatment of platinum group metals and gold Grant 4,188,362 - Edwards , et al. February 12, 1 | 1980-02-12 |
| Separation and purification of ruthenium Grant 4,105,442 - Fieberg , et al. August 8, 1 | 1978-08-08 |
| Separation of platinum group metals and gold Grant 3,985,552 - Edwards October 12, 1 | 1976-10-12 |
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