Armco Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 381
 
  
 
B05B SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES 163
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 186
 
  
 
B23K SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 192
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 166
 
  
 
C21B MANUFACTURE OF IRON OR STEEL 122
 
  
 
C21C PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL 117
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 144
 
  
 
C22B PRODUCTION OR REFINING OF METALS 127
 
  
 
C22C ALLOYS 171

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5702502 Method for direct use of chromite ore in the production of stainless steelDec 14, 95Dec 30, 97[C22B, C21C, C21B]
5421911 Regular grain oriented electrical steel production processNov 22, 93Jun 06, 95[H01F]
5292549 Metallic coated steel having a siloxane film providing temporary corrosion protection and method thereforOct 23, 92Mar 08, 94[B05D]
5288736 Method for producing regular grain oriented electrical steel using a single stage cold reductionNov 12, 92Feb 22, 94[H01F]
5257716 Pipe manufacturing method and apparatusSep 10, 92Nov 02, 93[B23K, B65G]
5192373 Magnesium oxide coating for electrical steels and the method of coatingApr 12, 91Mar 09, 93[H01F]
5176755 Plastic powder coated metal stripMar 05, 91Jan 05, 93[B05B]
RE31306 Cold rolled, ductile, high strength steel strip and sheet and method thereforMay 06, 81Jul 12, 83[C21D]
RE31221 Cold rolled, ductile, high strength steel strip and sheet and method thereforMay 06, 81Apr 26, 83[C22C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6088895 Method for descaling hot rolled stripExpiredJan 21, 99Jul 18, 00[B21B]
6074600 Modification of tundish dam to minimize turbulenceExpiredMay 26, 99Jun 13, 00[C21B]
5749939 Melting of NI laterite in making NI alloyed iron or steelExpiredDec 04, 96May 12, 98[C21C]
5736709 Descaling metal with a laser having a very short pulse width and high average powerExpiredAug 12, 96Apr 07, 98[B23K]
5688010 Coil edge protection from lifting deviceExpiredJun 10, 96Nov 18, 97[B66C]
5567224 Method of reducing metal oxide in a rotary hearth furnace heated by an oxidizing flameExpiredJun 06, 95Oct 22, 96[C21B]
5539031 Metal substrate with enhanced corrosion resistance and improved paint adhesionExpiredJul 07, 95Jul 23, 96[C08K]
5498481 Metal substrate with enhanced corrosion resistance and improved paint adhesionExpiredJul 07, 95Mar 12, 96[B05D, B32B]
5478655 Metal pretreated with an inorganic/organic composite coating with enhanced paint adhesionExpiredJan 25, 94Dec 26, 95[B32B]
5455080 Metal substrate with enhanced corrosion resistance and improved paint adhesionExpiredJun 10, 94Oct 03, 95[B05D]
5328529 High strength austenitic stainless steel having excellent galling resistanceExpiredMar 25, 93Jul 12, 94[C22C]
5326594 Metal pretreated with an inorganic/organic composite coating with enhanced paint adhesionExpiredDec 02, 92Jul 05, 94[B05D]
5322713 Metal sheet with enhanced corrosion resistance having a silane treated aluminate coatingExpiredMar 24, 93Jun 21, 94[B05D]
5234490 Operating a blast furnace using dried top gasExpiredNov 29, 91Aug 10, 93[C21B]
5200275 Steel sheet with enhanced corrosion resistance having a silane treated silicate coatingExpiredJul 12, 91Apr 06, 93[B32B]
5182883 Telephone enclosureExpiredFeb 22, 91Feb 02, 93[E04H]
5137611 Electrolytic plating one surface of conductive sheetExpiredNov 01, 91Aug 11, 92[C25D]
5127736 Apparatus for measuring wear in the lining of refractory furnacesExpiredMar 31, 87Jul 07, 92[F27D, G01B]
5125745 Automatic BOF vessel remaining lining profiler and methodExpiredFeb 25, 91Jun 30, 92[G01B]
5116686 Method of forming a laminate and the product thereof a laminate including a sealing agent and a bonding agentExpiredSep 27, 90May 26, 92[B32B]

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