Assignee
PECHINEY ALUMINIUM
FR·236 granted patents·3 pending applications·3,631 citations·filing 1974–2006
Top patents by PatentIndex Score
239 records- 0193US4802656ARotary blade-type apparatus for dissolving alloy elements and dispersing gas in an aluminum bathPECHINEY ALUMINIUM·Filed 1987·Granted Feb 7, 1989·160 cites·9 claims
- 0291US5058653AProcess for lost foam casting of metal partsPECHINEY ALUMINIUM·Filed 1990·Granted Oct 22, 1991·38 cites·6 claims
- 0391US4607825ALadle for the chlorination of aluminium alloys, for removing magnesiumPECHINEY ALUMINIUM·Filed 1985·Granted Aug 26, 1986·109 cites·7 claims
- 0491US4530404AProcess for the electromagnetic casting of metals involving the use of at least one magnetic field which differs from the field of confinementPECHINEY ALUMINIUM·Filed 1983·Granted Jul 23, 1985·34 cites·7 claims
- 0590US4106956AMethod of treating metal alloys to work them in the state of a liquid phase-solid phase mixture which retains its solid formPECHINEY ALUMINIUM·Filed 1977·Granted Aug 15, 1978·38 cites·12 claims
- 0689US4426068ARotary gas dispersion device for the treatment of a bath of liquid metalPECHINEY ALUMINIUM·Filed 1982·Granted Jan 17, 1984·59 cites·7 claims
- 0789US4372541AApparatus for treating a bath of liquid metal by injecting gasPECHINEY ALUMINIUM·Filed 1981·Granted Feb 8, 1983·144 cites·15 claims
- 0888US5630466AProcess for shaping metal materials in a semi-solid statePECHINEY ALUMINIUM·Filed 1995·Granted May 20, 1997·61 cites·8 claims
- 0988US4237102AProcess for obtaining pure alumina by the hydrochloric attack of aluminous ores and extraction of the impurities by means of a sulphuric treatmentPECHINEY ALUMINIUM·Filed 1979·Granted Dec 2, 1980·34 cites·5 claims
- 1088US4113473AProcess for obtaining novel blanks for extrusion by impactPECHINEY ALUMINIUM·Filed 1977·Granted Sep 12, 1978·32 cites·5 claims
- 1188US3961995AMother alloy of aluminum, titanium and boron and process for fabricationPECHINEY ALUMINIUM·Filed 1974·Granted Jun 8, 1976·49 cites·7 claims
- 1287US4964455AMethod of making thixotropic metal products by continuous castingPECHINEY ALUMINIUM·Filed 1989·Granted Oct 23, 1990·25 cites·23 claims
- 1387US4169034AMeans of compensating the magnetic field induced by the adjacent line in series of high intensity electrolysis cellsPECHINEY ALUMINIUM·Filed 1978·Granted Sep 25, 1979·28 cites·4 claims
- 1486US4523628AProcess for casting metals in which magnetic fields are employedPECHINEY ALUMINIUM·Filed 1983·Granted Jun 18, 1985·23 cites·9 claims
- 1586US4437964AAssembly for spot feeding alumina to an electrolytic tank for the production of aluminumPECHINEY ALUMINIUM·Filed 1983·Granted Mar 20, 1984·41 cites·4 claims
- 1686US4151896AMethod of producing machine wire by continuous casting and rollingPECHINEY ALUMINIUM·Filed 1978·Granted May 1, 1979·28 cites·5 claims
- 1785US6983060B1Method to measure degree and homogeneity of alumina calcinationPECHINEY ALUMINIUM·Filed 2000·Granted Jan 3, 2006·58 cites·6 claims
- 1885US4107281AProcess for the thermal decomposition of aluminum chloride hexahydrate to obtain aluminaPECHINEY ALUMINIUM·Filed 1977·Granted Aug 15, 1978·29 cites·9 claims
- 1983US4314468AStamping in liquid female toolPECHINEY ALUMINIUM·Filed 1979·Granted Feb 9, 1982·29 cites·5 claims
- 2083US4080437AProcess for thermal decomposition of aluminum chloride hexahydratePECHINEY ALUMINIUM·Filed 1976·Granted Mar 21, 1978·30 cites·17 claims
- 2182US5879478AProcess for semi-solid forming of thixotropic aluminum-silicon-copper alloyPECHINEY ALUMINIUM·Filed 1997·Granted Mar 9, 1999·39 cites·7 claims
- 2282US4200476AProcess for the thermal treatment of thick products made of copper-containing aluminum alloys of the 7000 seriesPECHINEY ALUMINIUM·Filed 1978·Granted Apr 29, 1980·24 cites·10 claims
- 2382US4124680AMethod of obtaining pure alumina by acid attack on aluminous minerals containing other elementsPECHINEY ALUMINIUM·Filed 1978·Granted Nov 7, 1978·23 cites·14 claims
- 2482US3977950AProcess and apparatus for collection of gasesPECHINEY ALUMINIUM·Filed 1975·Granted Aug 31, 1976·33 cites·7 claims
- 2581US6780303B2Continuous nickel plating process for an aluminum conductor and corresponding devicePECHINEY ALUMINIUM·Filed 2002·Granted Aug 24, 2004·22 cites·40 claims
- 2681US4859175AApparatus and process for optimizing combustion in chamber-type furnaces for baking carbonaceous blocksPECHINEY ALUMINIUM·Filed 1987·Granted Aug 22, 1989·40 cites·12 claims
- 2781US4713161ADevice for connection between very high intensity electrolysis cells for the production of aluminium comprising a supply circuit and an independent circuit for correcting the magnetic fieldPECHINEY ALUMINIUM·Filed 1986·Granted Dec 15, 1987·32 cites·14 claims
- 2881US4592821AElectrolysis tank with a current strength of greater than 250,000 amperes for the production of aluminum by means of the Hall-Heroult processPECHINEY ALUMINIUM·Filed 1984·Granted Jun 3, 1986·24 cites·8 claims
- 2981US4226844AMethod of thermally splitting hydrate of aluminum chloridePECHINEY ALUMINIUM·Filed 1979·Granted Oct 7, 1980·23 cites·15 claims
- 3080US4091085AProcess for thermal decomposition of aluminum chloride hydrates by indirect heatPECHINEY ALUMINIUM·Filed 1977·Granted May 23, 1978·37 cites·20 claims
- 3179US7678244B2Electrolytic cell leak limiterPECHINEY ALUMINIUM·Filed 2005·Granted Mar 16, 2010·9 cites·33 claims
- 3279US5409054AProcess and plant for automatic casting of semi-finished productsPECHINEY ALUMINIUM·Filed 1994·Granted Apr 25, 1995·22 cites·9 claims
- 3379US4465578AApparatus for the precise adjustment of the anode plane of an electrolysis cell used in the production of aluminumPECHINEY ALUMINIUM·Filed 1982·Granted Aug 14, 1984·26 cites·5 claims
- 3479US4196060AMethod of surface treating an aluminum wire for electrical usePECHINEY ALUMINIUM·Filed 1976·Granted Apr 1, 1980·33 cites·7 claims
- 3578US4668352AProcess and apparatus for automatic increased suction extraction on electrolysis tanks for the production of aluminumPECHINEY ALUMINIUM·Filed 1985·Granted May 26, 1987·33 cites·11 claims
- 3678US4177242AMethod of obtaining pure alumina by acid attack on aluminous minerals containing other elementsPECHINEY ALUMINIUM·Filed 1978·Granted Dec 4, 1979·20 cites·17 claims
- 3777US7048475B2System for distribution of pulverulent material with controlled gravimetric flow ratesPECHINEY ALUMINIUM·Filed 2002·Granted May 23, 2006·24 cites·4 claims
- 3877US6409894B1Lay-out of installations in an electrolysis plant for the production of aluminumPECHINEY ALUMINIUM·Filed 2000·Granted Jun 25, 2002·16 cites·22 claims
- 3977US4119505AProcess and device for cleaning the butts of worn anodes from an igneous electrolysis cellPECHINEY ALUMINIUM·Filed 1977·Granted Oct 10, 1978·23 cites·5 claims
- 4076US4065326AElectrical conductors of aluminum-based alloys and process for the manufacture thereofPECHINEY ALUMINIUM·Filed 1976·Granted Dec 27, 1977·20 cites·4 claims
- 4176US3964793AContinuous flow pneumatic conveyor system employing a fluidized bed column for the purposes of control and regulationPECHINEY ALUMINIUM·Filed 1974·Granted Jun 22, 1976·23 cites·4 claims
- 4275US7429314B2Device for controlling the travel distance of a chisel in a feeding system for an aluminium production electrolytic cellPECHINEY ALUMINIUM·Filed 2005·Granted Sep 30, 2008·7 cites·16 claims
- 4375US5015340AMethod of continuous coating of electrically conductive substratesPECHINEY ALUMINIUM·Filed 1990·Granted May 14, 1991·27 cites·7 claims
- 4475US4777998AMachine for pressure casting of metal parts possibly containing fibres of ceramic materialsPECHINEY ALUMINIUM·Filed 1987·Granted Oct 18, 1988·15 cites·4 claims
- 4575US4692068AApparatus for distribution at a regulated rate of a fluidizable powdery materialPECHINEY ALUMINIUM·Filed 1986·Granted Sep 8, 1987·29 cites·2 claims
- 4675US4659263AClosed apparatus providing potential fluidization for horizontally conveying powder materialsPECHINEY ALUMINIUM·Filed 1983·Granted Apr 21, 1987·24 cites·1 claims
- 4775US4612105ACarbonaceous anode with partially constricted round bars intended for cells for the production of aluminium by electrolysisPECHINEY ALUMINIUM·Filed 1985·Granted Sep 16, 1986·22 cites·9 claims
- 4875US4241030AContinuous process for obtaining pure alumina from an acidic liquor originating from the chlorosulphuric attack of an aluminous ore and for the purification of the liquor which has been freed from aluminaPECHINEY ALUMINIUM·Filed 1979·Granted Dec 23, 1980·20 cites·7 claims
- 4974US6264813B1Cathodic sputtering targets made of aluminum alloyPECHINEY ALUMINIUM·Filed 1999·Granted Jul 24, 2001·26 cites·9 claims
- 5074US6065867AMethod and device for measuring the temperature and the level of the molten electrolysis bath in cells for aluminum productionPECHINEY ALUMINIUM·Filed 1995·Granted May 23, 2000·38 cites·22 claims
Showing the top 50 of 239 patent records by PatentIndex Score.
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