NUPRO CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C21B MANUFACTURE OF IRON OR STEEL 320
 
  
 
C21C PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL 117
 
  
 
F27B FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS123
 
  
 
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 124

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9618265 Method for tapping a steel making furnaceOct 29, 14Apr 11, 17[F27B, F27D, C21C]
7468090 Method for tapping a steel making furnaceNov 28, 05Dec 23, 08[C21B]
6737014 Slag detector for molten steel transfer operationsMar 09, 01May 18, 04[C21B]
6264716 Process for controlling the stirring energy delivered by a gas flowing through a liquidMar 18, 00Jul 24, 01[C21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0019,715 COMPOSITION FOR REDUCING THE OXYGEN POTENTIAL OF SLAGAbandonedJul 18, 11Jan 24, 13[C21C]
6923843 Method for oxygen injection in metallurgical process requiring variable oxygen feed rateExpiredNov 12, 02Aug 02, 05[C21C]

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