Assignee
PENARROYA MINIERE METALL
21 granted patents·221 citations·filing 1975–1986
Top patents by PatentIndex Score
21 records- 0190US4288304AHydrometallurgical process for treatment of sulphur oresPENARROYA MINIERE METALL·Filed 1980·Granted Sep 8, 1981·34 cites·69 claims
- 0288US4023964AMethod of obtaining copper from copper-bearing oresPENARROYA MINIERE METALL·Filed 1975·Granted May 17, 1977·30 cites·15 claims
- 0381US3998628AMethod for selectively dissolving non-ferrous metals contained in pyritic oresPENARROYA MINIERE METALL·Filed 1975·Granted Dec 21, 1976·21 cites·4 claims
- 0479US4230487AMethod of selectively bringing into solution the non-ferrous metals contained in sulphurized ores and concentratesPENARROYA MINIERE METALL·Filed 1979·Granted Oct 28, 1980·19 cites·19 claims
- 0575US4090871AProcess for the recovery and purification of germanium from zinc oresPENARROYA MINIERE METALL·Filed 1976·Granted May 23, 1978·23 cites·40 claims
- 0671US4389379AProcess for selective liquid-liquid extraction of germaniumPENARROYA MINIERE METALL·Filed 1980·Granted Jun 21, 1983·17 cites·13 claims
- 0762US4016056AMethod of obtaining copper from sulphurized concentratesPENARROYA MINIERE METALL·Filed 1975·Granted Apr 5, 1977·11 cites·16 claims
- 0859US4297183AProcess for the treatment of solutions of lead chloridePENARROYA MINIERE METALL·Filed 1980·Granted Oct 27, 1981·9 cites·13 claims
- 0956US4568526AProcess for selective liquid-liquid extraction of germaniumPENARROYA MINIERE METALL·Filed 1982·Granted Feb 4, 1986·10 cites·22 claims
- 1049US4212429AMethod and an apparatus for controlling a crusherPENARROYA MINIERE METALL·Filed 1978·Granted Jul 15, 1980·14 cites·8 claims
- 1148US4568525AMethod for the selective dissolution of lead from mixed minerals containing zincPENARROYA MINIERE METALL·Filed 1983·Granted Feb 4, 1986·7 cites·8 claims
- 1243US4902343AHydrometallurgical process for the treatment of sulphidized compounds containing leadPENARROYA MINIERE METALL·Filed 1982·Granted Feb 20, 1990·5 cites·23 claims
- 1336US4507182AProcess for preparing metal by electrolysis, especially lead, and by-product obtained by their applicationPENARROYA MINIERE METALL·Filed 1983·Granted Mar 26, 1985·5 cites·16 claims
- 1431US4636354AProcess and alloy of galvanization of tempered steel containing silicon, and galvanized objectPENARROYA MINIERE METALL·Filed 1984·Granted Jan 13, 1987·4 cites·4 claims
- 1528US4640710AProcess for recovering silver from sulfate solutionsPENARROYA MINIERE METALL·Filed 1984·Granted Feb 3, 1987·1 cites·8 claims
- 1627US4395291AProcess for making non-dusting high lead oxide-low silica additivePENARROYA MINIERE METALL·Filed 1982·Granted Jul 26, 1983·6 cites·9 claims
- 1725US3999982AProcess for preventing the oxidation of liquid zincPENARROYA MINIERE METALL·Filed 1975·Granted Dec 28, 1976·0 cites·7 claims
- 1824US4601805AApparatus for preparing metal by electrolysisPENARROYA MINIERE METALL·Filed 1984·Granted Jul 22, 1986·1 cites·22 claims
- 1923US4699815AProcess of galvanization of tempered steel containing siliconPENARROYA MINIERE METALL·Filed 1986·Granted Oct 13, 1987·1 cites·6 claims
- 2020US4548793AElectrochemical elimination of nickel from lead containing chloride solutionsPENARROYA MINIERE METALL·Filed 1983·Granted Oct 22, 1985·0 cites·3 claims
- 2117US4113624AFlotation apparatus with mechanical agitationPENARROYA MINIERE METALL·Filed 1976·Granted Sep 12, 1978·3 cites·9 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →