NORTH AMERICAN REFRACTORIES COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 582
 
  
 
C21C PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL 513
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 445
 
  
 
C21B MANUFACTURE OF IRON OR STEEL 419
 
  
 
F27D DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE 322
 
  
 
B28B SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER 226
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 266
 
  
 
1509 MACHINE TOOLS, ABRADING AND FOUNDING MACHINERY227
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1124
 
  
 
B30B PRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR 121

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9724756 Refractory component for lining a metallurgical vesselMay 09, 14Aug 08, 17[B22D]
9005518 High yield ladle bottomsJan 30, 12Apr 14, 15[F27D, B22D, C21C]
8411724 Sill and door jamb assembly for electric arc furnaceNov 13, 08Apr 02, 13[F23M, F27D]
8354056 Refractory component with locking surface and method of forming the sameJan 30, 08Jan 15, 13[C21B, B32B]
D661716 High-yield ladle bottomJan 05, 12Jun 12, 12[1509]
D661717 High-yield ladle bottomJan 05, 12Jun 12, 12[1509]
8110142 High yield ladle bottomsFeb 18, 08Feb 07, 12[B22D, C21C]
8030235 Refractory brick for steel ladlesDec 18, 08Oct 04, 11[C04B]
7611666 Tundish dry vibratable formFeb 07, 08Nov 03, 09[C21C]
7468157 Impact pad for metallurgical vesselsDec 14, 05Dec 23, 08[C21C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0050,285 IMPACT PADAbandonedAug 20, 07Feb 26, 09[B22D]
2009/0035,474 Refractories with improved hydration resistanceAbandonedAug 02, 07Feb 05, 09[B05D]
2009/0020,926 INSULATING REFRACTORY LININGAbandonedJul 17, 07Jan 22, 09[B05D, B22D]
2009/0020,927 INSULATING REFRACTORY LININGAbandonedSep 08, 08Jan 22, 09[B05D, B29C, B22D]
7056469 Starter set for brick lining of ladles used in handling molten metalExpiredOct 31, 03Jun 06, 06[C21B]
2005/0110,202 Injection lanceAbandonedNov 21, 03May 26, 05[C21C]
6548436 Cristobalite-free mullite grain having reduced reactivity to molten aluminum and method of producing the sameExpiredApr 15, 02Apr 15, 03[C04B]
6407023 Cristobalite-free mullite grain having reduced reactivity to molten aluminum and method of producing the sameExpiredOct 28, 99Jun 18, 02[C04B]
6103651 High density ceramic metal composite exhibiting improved mechanical propertiesExpiredFeb 07, 96Aug 15, 00[C04B]
5976240 Refractory system including reactive metakaolin additiveExpiredSep 08, 97Nov 02, 99[C04B]
5948713 Cristobalite-free mullite grain and method of producing sameExpiredJul 23, 97Sep 07, 99[C03C, C04B]
5944888 Spray insulating coating for refractory articlesExpiredJan 09, 98Aug 31, 99[C04B, E04B]
5945168 Set modifying admixtures for refractory shotcretingExpiredFeb 27, 97Aug 31, 99[B05D]
5932506 Alumina-silicon carbide-carbon refractory castable containing magnesium aluminate spinelExpiredFeb 23, 98Aug 03, 99[C04B]
5916471 Rotary socket taphole assemblyExpiredNov 10, 98Jun 29, 99[B22D]
5902511 Refractory composition for the prevention of alumina cloggingExpiredAug 07, 97May 11, 99[B22D]
5866022 Refractory pour tube with cast plateExpiredMar 24, 97Feb 02, 99[B22D]
5792251 Method of producing metakaolinExpiredFeb 14, 97Aug 11, 98[C04B]
5730921 Co-molding process for producing refractory materials without firing or coking the refractoryExpiredMar 31, 95Mar 24, 98[B29C]
5687531 Horizontal flue technology for carbon baking furnaceExpiredFeb 14, 95Nov 18, 97[E04C]

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