Republic Steel Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
RE30926 Ultrasonic inspectionFeb 05, 81May 11, 82[G01N]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4705260 Furnace for heating and melting zincExpiredJun 06, 84Nov 10, 87[F27D]
4683430 Eddy current flaw detector method and apparatus having a rotatable high permeability flux concentrator encircling a workpieceExpiredJun 27, 84Jul 28, 87[G01N, G01R]
4673879 Eddy current flaw detector having rotatable field defining sleeve for selectively enhancing induced eddy currents in a workpieceExpiredJun 27, 84Jun 16, 87[G01N, G01R]
4644272 Hot annealed weld inspectionExpiredJul 31, 84Feb 17, 87[G01N]
4629367 Retaining wallExpiredJul 12, 84Dec 16, 86[E02D]
4576570 Automatic combustion control apparatus and methodExpiredJun 08, 84Mar 18, 86[F23N]
4549665 Shelf assemblyExpiredSep 03, 82Oct 29, 85[A47F]
4543528 Flexible probe assembly for use in nondestructive testing of a convex workpiece surfaceExpiredMar 18, 83Sep 24, 85[G01N, G01R]
4538669 Distortion measurement in castingExpiredDec 29, 83Sep 03, 85[B22D]
4534466 Nestable container for parts storageExpiredAug 13, 84Aug 13, 85[B65D]
4534002 Method and apparatus to optimize cut lengths of materialExpiredJan 19, 83Aug 06, 85[G06F]
4520861 Method and apparatus for alloying continuously cast steel productsExpiredNov 18, 83Jun 04, 85[B22D]
4514266 Method and apparatus for electroplatingExpiredSep 11, 81Apr 30, 85[C25D]
4507949 Apparatus for cooling a hot-rolled productExpiredFeb 12, 82Apr 02, 85[B21B]
4472681 Workpiece defect severity classifier with timing circuit to divide workpiece into equal inspection quadrantsExpiredAug 09, 82Sep 18, 84[G01N, G01R]
4465117 Ingot mold shieldsExpiredJul 20, 81Aug 14, 84[B29C, B22D]
4461995 Cooling method and apparatus for eddy current flaw detectionExpiredOct 29, 81Jul 24, 84[G01N, G01R]
4452749 Method of repairing hot refractory brick wallsExpiredSep 14, 82Jun 05, 84[F27D]
4437902 Batch-annealed dual-phase steelExpiredOct 19, 81Mar 20, 84[C21D]
4429860 Runner system for transferring molten metalExpiredMar 24, 82Feb 07, 84[C21B]

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