Pechiney Electrometallurgie
36Patents
1Active
36Granted
37Portfolio score
Filing activity: Oct 15, 1986 → Mar 21, 2006 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4997622A | High mechanical strength magnesium alloys and process for obtaining these alloys by rapid solidification | Chemistry; Metallurgy | 72 | Expired |
| US5336280A | Abrasive and/or refractory products based on melted and solidified oxynitrides and process preparing the same | Chemistry; Metallurgy | 58 | Expired |
| US5023212A | Electrically melted multiphase material based on alumina and aluminium oxycarbide and oxynitride | Chemistry; Metallurgy | 47 | Expired |
| US4914070A | Process for the production of silicon carbide with a large specific surface area and use for high-temperature catalytic reactions | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5196389A | Catalytic system particularly for the postcombustion of exhaust gases and a method of producing such a system | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5217930A | Binodal metallic carbide and its use as a catalyst | Chemistry; Metallurgy | 21 | Expired |
| US5429866A | Metallurgical silicon powder exhibiting low surface oxidation | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6057469A | Process for manufacturing active silicon powder for the preparation of alkyl- or aryl-halosilanes | Chemistry; Metallurgy | 17 | Expired |
| US5308597A | Production of heavy metal carbides of high specific surface area | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5147603A | Rapidly solidified and worked high strength magnesium alloy containing strontium | Chemistry; Metallurgy | 16 | Expired |
| US5078962A | High mechanical strength magnesium alloys and process for obtaining these by rapid solidification | Chemistry; Metallurgy | 16 | Expired |
| US5733502A | Ferroalloy for inoculation of spherulitic graphite irons | Chemistry; Metallurgy | 14 | Expired |
| US5391524A | Production of heavy metal carbides of high specific surface area | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5352271A | Composite wire with a plastic sheath for additions to metallic baths | Chemistry; Metallurgy | 11 | Expired |
| US5223215A | Method of improving the performance of magnesium alloys in respect of microshrinkage | Chemistry; Metallurgy | 10 | Expired |
| US5500399A | Silicon alloy containing aluminum, calcium and copper for the synthesis of alkyl or aryl halogenosilanes | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5714131A | Metallurgical silicon containing phosphorus for the preparation of organohalogenosilanes | Chemistry; Metallurgy | 8 | Expired |
| US4904622A | Process for the preparation of silicon carbide whiskers | Chemistry; Metallurgy | 7 | Expired |
| US5605583A | Metallurgical silicon with controlled microstructure for the preparation of halogenosilanes | Chemistry; Metallurgy | 5 | Expired |
| US5577065A | Device for mounting a self-baking electrode for an electric arc furnace | Electricity | 4 | Expired |
| US5435527A | Apparatus for the late introduction of particulate alloy when casting a liquid metal | Chemistry; Metallurgy | 4 | Expired |
| US7615095B2 | Products for the protection of continuous cast moulds for cast-iron pipes | Performing Operations; Transporting | 3 | Expired |
| US5782955A | Low oxygen-content metallurgical silicon and ferrosilicon | Chemistry; Metallurgy | 3 | Expired |
| US5242480A | Desulfurizing agent for cast iron, comprising calcium carbide and an organic binding agent | Chemistry; Metallurgy | 3 | Expired |
| US6793707B2 | Inoculation filter | Performing Operations; Transporting | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.