Assignee
PECHINEY URANIUM
FR·17 granted patents·150 citations·filing 1983–1993
Top patents by PatentIndex Score
17 records- 0182US5268947ANuclear fuel elements comprising a trap for fission products based on oxidePECHINEY URANIUM·Filed 1992·Granted Dec 7, 1993·32 cites·13 claims
- 0271US5340447AProcess for the selective electrofluorination of alloys or metallic mixtures based on uraniumPECHINEY URANIUM·Filed 1993·Granted Aug 23, 1994·22 cites·13 claims
- 0367US4634580AProcess for the purification of wet-process phosphoric acid by removal of cadmiumPECHINEY URANIUM·Filed 1984·Granted Jan 6, 1987·17 cites·19 claims
- 0461US4971734AMethod of making nuclear fuel pellets, comprising producing and using pourable, frittable powders obtained directly by precipitation of peroxidesPECHINEY URANIUM·Filed 1989·Granted Nov 20, 1990·12 cites·22 claims
- 0552US4889663AMethod of manufacturing uranium oxide base nuclear fuel pelletsPECHINEY URANIUM·Filed 1987·Granted Dec 26, 1989·20 cites·6 claims
- 0651US4524001AMethod of purifying uraniferous aqueous solutionsPECHINEY URANIUM·Filed 1983·Granted Jun 18, 1985·7 cites·7 claims
- 0748US4675166AProcess for the selective separation of uranium, zirconium and/or hafnium and/or molybdenum from a carbonated aqueous solution containing samePECHINEY URANIUM·Filed 1984·Granted Jun 23, 1987·6 cites·9 claims
- 0840US4744960AProcess for the separation of rare earths and uranium of a UF4 concentrate and for putting them into useful formPECHINEY URANIUM·Filed 1986·Granted May 17, 1988·4 cites·6 claims
- 0940US4714596AProcess for the recovery in the form of tetravalent fluoride of uranium extracted from phosphate-bearing solutionsPECHINEY URANIUM·Filed 1985·Granted Dec 22, 1987·4 cites·15 claims
- 1038US5091120AProcess for obtaining uo2 fuel pellets from metallic u without producing any effluentPECHINEY URANIUM·Filed 1990·Granted Feb 25, 1992·8 cites·32 claims
- 1136US5272740AAgent for trapping the radioactivity of fission products which are generated in a nuclear fuel elementPECHINEY URANIUM·Filed 1992·Granted Dec 21, 1993·4 cites·12 claims
- 1236US4613361AHigh-temperature pretreatment by means of an alkaline aqueous solution of ores having an argillaceous gangue containing at least one usable elementPECHINEY URANIUM·Filed 1984·Granted Sep 23, 1986·4 cites·16 claims
- 1334US4649030AProcess for the purification of uraniferous and/or molybendiferous amino organic solutions which contain zirconium and/or hafnium among other impuritiesPECHINEY URANIUM·Filed 1984·Granted Mar 10, 1987·2 cites·15 claims
- 1431US4643882AProcess for recovery by a solvent of the uranium present in phosphoric acidPECHINEY URANIUM·Filed 1984·Granted Feb 17, 1987·1 cites·7 claims
- 1530US4758411AProcess for the recovery in the form of tetravalent fluoride of uranium extracted from phosphate-bearing solutions with the addition of metalic ionsPECHINEY URANIUM·Filed 1985·Granted Jul 19, 1988·1 cites·12 claims
- 1621US4891192AProcess for the purification of traces of radioactive elements generated during the storage of uranium resulting from the reprocessing of irradiated nuclear fuelsPECHINEY URANIUM·Filed 1988·Granted Jan 2, 1990·4 cites·14 claims
- 1721US4702820APretreatment by alkaline wetting and holding at temperature of natural materials having an argillaceous gangue containing combustible elementsPECHINEY URANIUM·Filed 1986·Granted Oct 27, 1987·2 cites·11 claims
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