Assignee
PECHINEY
FR·18 granted patents·193 citations·filing 1980–1999
Top patents by PatentIndex Score
18 records- 0183US4431491AProcess and apparatus for accurately controlling the rate of introduction and the content of alumina in an igneous electrolysis tank in the production of aluminiumPECHINEY·Filed 1981·Granted Feb 14, 1984·28 cites·17 claims
- 0282US4456480AProcess for purifying metals by segregationPECHINEY·Filed 1983·Granted Jun 26, 1984·39 cites·7 claims
- 0369US4588485AProcess for the production of a metal by electrolyzing halides in a molten salt bath, comprising a simultaneous and continuous double depositPECHINEY·Filed 1985·Granted May 13, 1986·21 cites·11 claims
- 0467US4838988AProcess for obtaining crystals of intermetallic compounds, in particular isolated monocrystals, by cooling alloys in the molten statePECHINEY·Filed 1987·Granted Jun 13, 1989·17 cites·16 claims
- 0566US4747732AClosed apparatus with potential fluidization for horizontally conveying powder material in a dense bedPECHINEY·Filed 1987·Granted May 31, 1988·21 cites·4 claims
- 0660US4451439AProcess for the purification of solutions containing a sodium or potassium carbonate, sulphate, and possibly hydroxide, and at least one of the metals vanadium, uranium and molybdenumPECHINEY·Filed 1981·Granted May 29, 1984·12 cites·18 claims
- 0749US4770750AProcess for producing transition metal powders by electrolysis in melted salt bathsPECHINEY·Filed 1987·Granted Sep 13, 1988·7 cites·6 claims
- 0846US4575450AProcess for obtaining extruded semifinished products from high resistance aluminum alloy powderPECHINEY·Filed 1984·Granted Mar 11, 1986·8 cites·14 claims
- 0944US6669063B1Method for irreversibly fixing a cap on a container head enabling a limited rotation of said cap on said headPECHINEY·Filed 1999·Granted Dec 30, 2003·18 cites·24 claims
- 1042US4686025AApparatus for the production of a metal by electrolyzing halides in a molten salt bath, by a simultaneous continuous double depositPECHINEY·Filed 1986·Granted Aug 11, 1987·6 cites·6 claims
- 1141US4764223AProcess for the manufacture of a rough-shaped, cold-rolled cladding tube of zirconium alloyPECHINEY·Filed 1985·Granted Aug 16, 1988·13 cites·4 claims
- 1228US4898646AProcess for identifying Al alloys by electrochemical meansPECHINEY·Filed 1989·Granted Feb 6, 1990·2 cites·12 claims
- 1326US4675084AProcess for improving the purity of transition metals produced by electrolysis of halides thereof in a bath of molten saltsPECHINEY·Filed 1986·Granted Jun 23, 1987·0 cites·4 claims
- 1426US4657643AProcess for continuously controlling the proportion of metal dissolved in a bath of molten salts and the application thereof to the continuous feed of an electrolysis cell with salts of said metalPECHINEY·Filed 1986·Granted Apr 14, 1987·0 cites·5 claims
- 1526US4444585AProcess for producing metals in a very high state of purity in respect of eutectic elementsPECHINEY·Filed 1983·Granted Apr 24, 1984·0 cites·10 claims
- 1625US4450143AProcess for reducing the organic solvent losses in the treatment of a suspension resulting from the acid attack on an orePECHINEY·Filed 1980·Granted May 22, 1984·0 cites·8 claims
- 1721US4847495AMethod of quantitative analysis by means of the mean atomic number of phases containing a light element using a scanning microscope and an image analyserPECHINEY·Filed 1988·Granted Jul 11, 1989·1 cites·2 claims
- 1819US4865665AMetal alloy with large lattice spacingPECHINEY·Filed 1988·Granted Sep 12, 1989·0 cites·7 claims
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