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Societe Metallurgique dImphy SA

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Active Patents
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Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3414401A Process for obtaining solid zinc from zinc vapour containin… Expired / Lapsed 1966-03-08 1968-12-03 0 Details
FR1429310A Process for reducing difficultly reducible ores and install… Expired / Lapsed 1964-12-02 1966-02-25 0 Details
FR1411035A Plant and method for reducing oxides that are difficult to … Expired / Lapsed 1964-04-30 1965-09-17 0 Details