ELKEM AS

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF574
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR491
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 365
 
  
 
C22C ALLOYS 369
 
  
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 2100
 
  
 
C21C PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL 216
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141
 
  
 
B22F WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER 151
 
  
 
B24B MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING 165
 
  
 
B60C VEHICLE TYRES 149

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0298,481 GRAY CAST IRON INOCULANTApr 15, 16Oct 19, 17[C21C, C22C]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9738540 Process for the production of aluminium oxide particlesFeb 09, 15Aug 22, 17[C01F]
9388051 Method for production of trichlorosilane and silicon for use in the production of trichlorosilaneJul 06, 11Jul 12, 16[C01B]
9388481 High strength, oxidation and wear resistant titanium-silicon based alloyDec 24, 14Jul 12, 16[C22C]
8962537 Oil well drilling fluids, oil well cement composition and slurry of weighting materialNov 21, 11Feb 24, 15[C09K, C04B]
8876968 Cement composition based on calcium aluminate cementSep 26, 11Nov 04, 14[C09K, C04B]
8729172 High performance engineering plastics and additive for use in engineering plasticsDec 28, 04May 20, 14[C08J, C07F, B60C, C08K]
8668772 Slurry of manganomanganic oxide particles and method for the production of slurrySep 14, 11Mar 11, 14[C09K, C04B, C09C, C01G]
8585819 Aqueous slurry of amorphous silica and method for its productionMay 16, 11Nov 19, 13[C04B]
8053507 Highly filled elastomeric resin compositions with added microsilica for processabilityMay 22, 03Nov 08, 11[C01B, C08K]
7931883 Silicon feedstock for solar cellsApr 23, 08Apr 26, 11[C01B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0236,095 METHOD OF CEMENTING GAS OR OIL PIPELINE AND HYDRAULIC CEMENT SLURRYAbandonedAug 29, 07Sep 24, 09[E21B]
7504010 Anode for electrolysis of aluminumExpiredMar 09, 06Mar 17, 09[C25B]
2009/0012,213 Composite Plastics MaterialAbandonedFeb 27, 06Jan 08, 09[C08L, C08K]
7462341 Method for production of trichlorosilane and silicon for use in the production of trichlorosilaneExpiredJun 24, 04Dec 09, 08[C01B]
2008/0016,984 SYSTEMS AND METHODS FOR CARBOTHERMICALLY PRODUCING ALUMINUMAbandonedJul 20, 06Jan 24, 08[C22B]
7232544 Apparatus for continuous slag treatment of siliconExpiredOct 07, 02Jun 19, 07[C21C]
2004/0220,421 Method for removing impurities from silicone-containing residuesAbandonedMar 30, 04Nov 04, 04[C07F]
5654460 Method for production of aklylhalosilanesExpiredMay 31, 95Aug 05, 97[C07F]
5634960 Scrap melting in a submerged arc furnaceExpiredFeb 16, 95Jun 03, 97[C21B]
5585080 Method for recovering iron chloride, aluminum chloride and calcium chloride from a leach solutionExpiredMar 02, 95Dec 17, 96[C01G, C01F]
5388317 Method for reinforcing and repairing equipment parts and components subjected to heavy abrasive wearExpiredMar 18, 93Feb 14, 95[F16L, B23P]
5135576 Combined structures of ceramic materials and super concreteExpiredOct 18, 90Aug 04, 92[C04B]
5128116 Silicon powder and method for production of silicon powderExpiredJan 11, 90Jul 07, 92[C01B]
5094832 Silicon powder and a method for producing silicon powder by gas atomization of siliconExpiredDec 10, 90Mar 10, 92[C01B]
5080127 Dosing pump systemExpiredMar 15, 90Jan 14, 92[B01D]
5034554 Polysiloxane oils and process for their preparationExpiredJun 28, 90Jul 23, 91[C07F]
5007480 Use of manganese oxide in drilling mud and oil well cement slurriesExpiredFeb 24, 89Apr 16, 91[C09K, E21B]
5005768 Spray nozzleExpiredJun 05, 90Apr 09, 91[B28C, E04F]
5004496 Method and apparatus for treatment of dust recovered from off gases in metallurgical processesExpiredJul 20, 90Apr 02, 91[C22B, F27D]
4997167 Ladle inoculant dispenserExpiredAug 03, 89Mar 05, 91[C21L]

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