PECHINEY ELECTROMETALLURGIE

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C22C ALLOYS 270
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF178

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6613119 Inoculant pellet for late inoculation of cast ironJan 10, 02Sep 02, 03[C22C]
5714131 Metallurgical silicon containing phosphorus for the preparation of organohalogenosilanesDec 15, 95Feb 03, 98[C01B]
5223215 Method of improving the performance of magnesium alloys in respect of microshrinkageSep 16, 91Jun 29, 93[C22C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0178,767 Dry-Spray Products For Protecting Centrifugal Casting Molds of Cast Iron Pipes in Association With a Wet-Spray ProductAbandonedMar 29, 06Jul 31, 08[B28B]
2005/0180,876 Inoculation alloy against micro-shrinkage cracking for treating cast iron castingsAbandonedOct 19, 04Aug 18, 05[C22C]
6793707 Inoculation filterExpiredJan 10, 02Sep 21, 04[C22B, C21C]
2004/0025,980 Method for producing spheroidal graphite cast ironAbandonedJul 18, 03Feb 12, 04[C21C]
2003/0118,498 Method for recuperating thermal energy of gases of an electrometallurgical furnace and use for making silica powderAbandonedDec 27, 02Jun 26, 03[C01B]
6391255 Metallurgical-grade silicon with a controlled structure for use in halosilane synthesisExpiredJan 28, 99May 21, 02[C22C]
6338753 Powder product to protect moulds for the centrifugal casting of cast iron tubes and method of preparing this productExpiredJan 05, 99Jan 15, 02[C01B, B22C]
6235747 6-phenyl-pyridin-2-ylamine derivativesExpiredMar 13, 97May 22, 01[A61K, C07D]
6057469 Process for manufacturing active silicon powder for the preparation of alkyl- or aryl-halosilanesExpiredSep 08, 99May 02, 00[C07F]
5782955 Low oxygen-content metallurgical silicon and ferrosiliconExpiredJan 11, 96Jul 21, 98[C22C]
5605583 Metallurgical silicon with controlled microstructure for the preparation of halogenosilanesExpiredFeb 17, 95Feb 25, 97[C01B]
5540754 Method for condensation of metal vapors to the liquid stateExpiredDec 13, 94Jul 30, 96[C22B]
5500399 Silicon alloy containing aluminum, calcium and copper for the synthesis of alkyl or aryl halogenosilanesExpiredMay 15, 95Mar 19, 96[B01J]
5476529 Process for the recovery of magnesium from magnesium alloys wasteExpiredNov 23, 94Dec 19, 95[C22B]
5435527 Apparatus for the late introduction of particulate alloy when casting a liquid metalExpiredSep 14, 94Jul 25, 95[B22D]
5352271 Composite wire with a plastic sheath for additions to metallic bathsExpiredFeb 24, 93Oct 04, 94[C21C]
5282882 Process for refining crude magnesiumExpiredJan 21, 93Feb 01, 94[C22B]
5198016 Product for the desulphurization of molten pig iron or steel based on coated magnesiumExpiredNov 05, 91Mar 30, 93[C21C]
5147603 Rapidly solidified and worked high strength magnesium alloy containing strontiumExpiredMay 23, 91Sep 15, 92[C22C]
5078962 High mechanical strength magnesium alloys and process for obtaining these by rapid solidificationExpiredAug 23, 90Jan 07, 92[C23C]

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