Inventor · disambiguated record
Jean-Michel Demarthe
Also filed as: DEMARTHE JEAN-MICHEL
16 granted patents·235 citations·filing 1975–1989
94Inventor score
Files withPENARROYA MINIERE METALL7MINEMET RECH SA3IMETAL2METALEUROP SA1METALLURG LE NICHEL S L N SOC1
Top patents by PatentIndex Score
16 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
- 0578US4435368AHydrometallurgical process for selective dissolution of mixtures of oxy compoundsMITSUBISHI RAYON CO·Filed 1979·Granted Mar 6, 1984·17 cites·1 claims
- 0678US4016054AHydrometallurgical treatment process for extracting constituent metal values from ferro-nickelIMETAL·Filed 1975·Granted Apr 5, 1977·19 cites·22 claims
- 0776US3992270AMethod of reclaiming nickel values from a nickeliferous alloyIMETAL·Filed 1975·Granted Nov 16, 1976·19 cites·16 claims
- 0875US4090871AProcess for the recovery and purification of germanium from zinc oresPENARROYA MINIERE METALL·Filed 1976·Granted May 23, 1978·23 cites·40 claims
- 0963US4311676AProcess for the recovery of uranium contained in phosphated compoundsMINEMET RECH SA·Filed 1979·Granted Jan 19, 1982·12 cites·20 claims
- 1062US4016056AMethod of obtaining copper from sulphurized concentratesPENARROYA MINIERE METALL·Filed 1975·Granted Apr 5, 1977·11 cites·16 claims
- 1152US4166737AMethod for dissolving the non-ferrous metals contained in oxygenated compoundsMINEMET RECH SA·Filed 1977·Granted Sep 4, 1979·7 cites·11 claims
- 1243US4902343AHydrometallurgical process for the treatment of sulphidized compounds containing leadPENARROYA MINIERE METALL·Filed 1982·Granted Feb 20, 1990·5 cites·23 claims
- 1342US4282188AProcess for the recovery of uranium contained in phosphated solutionsMINEMET RECH SA·Filed 1978·Granted Aug 4, 1981·7 cites·20 claims
- 1440US4173520AHydrometallurgical method for treating nickel mattesNICKEL LE·Filed 1977·Granted Nov 6, 1979·5 cites·14 claims
- 1534US4954322AProcess for the recovery of metal values contained in a gangueMETALEUROP SA·Filed 1989·Granted Sep 4, 1990·2 cites·10 claims
- 1629US4236981AHydrometallurgical process for treating nickel mattesMETALLURG LE NICHEL S L N SOC·Filed 1979·Granted Dec 2, 1980·4 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →