Aluminum Pechiney
206Patents
6Active
206Granted
42Portfolio score
Filing activity: Apr 1, 1974 → Jul 10, 2006 · 6 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4802656A | Rotary blade-type apparatus for dissolving alloy elements and dispersing gas in an aluminum bath | Emerging Cross-Sectional Technologies | 132 | Expired |
| US4372541A | Apparatus for treating a bath of liquid metal by injecting gas | Chemistry; Metallurgy | 122 | Expired |
| US4607825A | Ladle for the chlorination of aluminium alloys, for removing magnesium | Chemistry; Metallurgy | 107 | Expired |
| US5630466A | Process for shaping metal materials in a semi-solid state | Emerging Cross-Sectional Technologies | 41 | Expired |
| US6983060B1 | Method to measure degree and homogeneity of alumina calcination | Physics | 36 | Expired |
| US3961995A | Mother alloy of aluminum, titanium and boron and process for fabrication | Chemistry; Metallurgy | 29 | Expired |
| US5219018A | Method of producing thixotropic metallic products by continuous casting, with polyphase current electromagnetic agitation | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4237102A | Process for obtaining pure alumina by the hydrochloric attack of aluminous ores and extraction of the impurities by means of a sulphuric treatment | Chemistry; Metallurgy | 23 | Expired |
| US4530404A | Process for the electromagnetic casting of metals involving the use of at least one magnetic field which differs from the field of confinement | Performing Operations; Transporting | 22 | Expired |
| US4091085A | Process for thermal decomposition of aluminum chloride hydrates by indirect heat | Emerging Cross-Sectional Technologies | 22 | Expired |
| US3964793A | Continuous flow pneumatic conveyor system employing a fluidized bed column for the purposes of control and regulation | Performing Operations; Transporting | 22 | Expired |
| US4124680A | Method of obtaining pure alumina by acid attack on aluminous minerals containing other elements | Chemistry; Metallurgy | 21 | Expired |
| US4080437A | Process for thermal decomposition of aluminum chloride hexahydrate | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4107281A | Process for the thermal decomposition of aluminum chloride hexahydrate to obtain alumina | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4177242A | Method of obtaining pure alumina by acid attack on aluminous minerals containing other elements | Chemistry; Metallurgy | 19 | Expired |
| US5585067A | Aluminum alloys containing very finely dispersed bismuth, cadmium, indium and/or lead and a process for obtaining them | Chemistry; Metallurgy | 19 | Expired |
| US5299694A | Apparatus and process for separating a material in fluidized bed form and the detection of clogging | Chemistry; Metallurgy | 18 | Expired |
| US5160388A | Process for producing cathodes for cathodic sputtering based on aluminium-silicon alloys | Chemistry; Metallurgy | 18 | Expired |
| US4964455A | Method of making thixotropic metal products by continuous casting | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4692068A | Apparatus for distribution at a regulated rate of a fluidizable powdery material | Performing Operations; Transporting | 17 | Expired |
| US5887481A | Cathode sputtering targets with a low level of particle emission, precursors of these targets, and processes for obtaining them | Physics | 17 | Expired |
| US6402437B1 | Process for conveyance of powder materials in hyperdense phase applicable to bypassing obstacles | Performing Operations; Transporting | 17 | Expired |
| US4986337A | Apparatus for gravity-feed casting with a large number of ingot molds of metal of metal billets of multiple diameters | Performing Operations; Transporting | 17 | Expired |
| USRE32529E | Process for the electromagnetic casting of metals involving the use of at least one magnetic field which differs from the field of confinement | General | 17 | Expired |
| US4241030A | Continuous 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 alumina | Chemistry; Metallurgy | 17 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.