Hylsa, S.A. DE C.V.

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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 1112
 
  
 
C10J PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES 219
 
  
 
B21C MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL120
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 148
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 166
 
  
 
B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES178
 
  
 
B67C FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS112
 
  
 
C10B DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS 118
 
  
 
C22B PRODUCTION OR REFINING OF METALS 127
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6986800 Method and apparatus for improved use of primary energy sources in integrated steel plantsMay 17, 04Jan 17, 06[C21B]
6871457 Vessel for enabling a uniform gravity driven flow of particulate bulk material therethrough, and direct reduction reactor incorporating sameMay 30, 02Mar 29, 05[B67C]
6395056 Method for the heat treatment of iron ore lumps in a reduction systemAug 04, 99May 28, 02[C21B]
6379421 Method and apparatus removing undesirable metals from iron-containing materialsFeb 17, 00Apr 30, 02[C22B]
6290434 Expansion joint for high-pressure high-temperature pneumatic transport of DRI or other abrasive particlesDec 30, 99Sep 18, 01[B65G]
6224649 Method and apparatus for reducing iron-oxides-particles having a broad range of sizesMar 17, 99May 01, 01[C21B]
6183535 Method for increasing the capacity of a direct reduced iron plant without increasing its reformer capacityOct 16, 98Feb 06, 01[C21B]
6132489 Method and apparatus for reducing iron-oxides-particles having a broad range of sizesOct 02, 98Oct 17, 00[C21B]
6050289 Spherical valve for flow control of particulate solids and gasesMar 05, 97Apr 18, 00[F16K]
6039283 Thin strip coiling systemMay 19, 98Mar 21, 00[B65H, B21C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2006/0027,043 Method and apparatus for producing clean reducing gases from coke oven gasAbandonedAug 02, 05Feb 09, 06[C21B]
2005/0151,307 Method and apparatus for producing molten ironAbandonedSep 29, 04Jul 14, 05[C21B]
2005/0079,127 Method and apparatus for destruction of liquid toxic wastes and generation of a reducing gasAbandonedAug 16, 04Apr 14, 05[C01B, B01J]
5882579 Apparatus for producing direct reduced iron utilizing a reducing gas with a high content of carbon monoxideExpiredJul 17, 97Mar 16, 99[C21B]
5766542 Refractory bricks for iron ore reduction reactorsExpiredApr 30, 97Jun 16, 98[B60G]
5706851 Plug valveExpiredNov 27, 95Jan 13, 98[F16K]
5584255 Method and apparatus for gasifying organic materials and vitrifying residual ashExpiredJun 07, 95Dec 17, 96[F23G]
5218617 Apparatus for feeding iron-bearing materials to metallurgical furnacesExpiredJun 01, 90Jun 08, 93[F27D]
5213611 Method of controlling metallization of directly reduced oresExpiredAug 27, 90May 25, 93[C21B]
5181954 Method for coating iron-bearing particles to be processed in a direct reduction processExpiredJan 14, 91Jan 26, 93[C21B]
5113890 Method and apparatus for regulating the flow of particulate ferromagnetic solidsExpiredNov 14, 90May 19, 92[F17D, F15B]
5110350 Method of reducing iron oreExpiredNov 14, 89May 05, 92[C21B]
5078787 Method and apparatus for the production of hot direct reduced ironExpiredJun 01, 90Jan 07, 92[C21B]
4897113 Direct reduction process in reactor with hot dischargeExpiredMar 25, 88Jan 30, 90[C21B]
4886097 Apparatus for handling and storage of particulate solidsExpiredNov 10, 88Dec 12, 89[B67C, B65B]
4880458 Start-up method for a direct reduction process without an external reformerExpiredMay 09, 88Nov 14, 89[C21B]
4853942 Graphite electrode with internal cooling for electric arc furnacesExpiredAug 05, 87Aug 01, 89[H05B]
4834792 Method for producing hot sponge iron by introducing hydrocarbon for carburizing into reduction zoneExpiredAug 21, 86May 30, 89[C21B]
4793856 Process for the direct reduction of iron oresExpiredSep 08, 87Dec 27, 88[C21B]
4747872 Process and apparatus for producing high purity ironExpiredMar 14, 85May 31, 88[F27D, C21B]

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