Inventor
DEMARTHE JEAN-MICHEL
16 patents
⚠️ This page may combine multiple inventors who share the name “DEMARTHE JEAN-MICHEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PENARROYA MINIERE METALL
7 patentsUS4288304ASep 8, 1981
Hydrometallurgical process for treatment of sulphur ores
PENARROYA MINIERE METALL34 citations91
US4023964AMay 17, 1977
Method of obtaining copper from copper-bearing ores
PENARROYA MINIERE METALL30 citations79
US3998628ADec 21, 1976
Method for selectively dissolving non-ferrous metals contained in pyritic ores
PENARROYA MINIERE METALL21 citations77
US4090871AMay 23, 1978
Process for the recovery and purification of germanium from zinc ores
PENARROYA MINIERE METALL23 citations73
US4230487AOct 28, 1980
Method of selectively bringing into solution the non-ferrous metals contained in sulphurized ores and concentrates
PENARROYA MINIERE METALL19 citations72
US4016056AApr 5, 1977
Method of obtaining copper from sulphurized concentrates
PENARROYA MINIERE METALL11 citations71
US4902343AFeb 20, 1990
Hydrometallurgical process for the treatment of sulphidized compounds containing lead
PENARROYA MINIERE METALL5 citations61
MINEMET RECH SA
3 patentsUS4166737ASep 4, 1979
Method for dissolving the non-ferrous metals contained in oxygenated compounds
MINEMET RECH SA7 citations72
US4311676AJan 19, 1982
Process for the recovery of uranium contained in phosphated compounds
MINEMET RECH SA12 citations68
US4282188AAug 4, 1981
Process for the recovery of uranium contained in phosphated solutions
MINEMET RECH SA7 citations67