NUCOR CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 775
 
 
 
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 2422
 
 
 
C22C ALLOYS 2052
 
 
 
E04B GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS 1829
 
 
 
E04C STRUCTURAL ELEMENTS; BUILDING MATERIALS 1610
 
 
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 1237
 
 
 
C21C PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL 108
 
 
 
B21B ROLLING OF METAL 725
 
 
 
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 619
 
 
 
F27B FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS519

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0327,925 CROSS-STRIP TEMPERATURE VARIATION CONTROLMay 11, 17Nov 16, 17[B21B, C21D, B22D]
2017/0314,594 DOUBLE THREADED STANDOFF FASTENERMay 02, 17Nov 02, 17[F16B, E04B]
2017/0144,218 METHOD FOR CASTING METAL STRIP WITH CROWN CONTROLNov 20, 15May 25, 17[B22D]
2016/0333,584 STRUCTURAL PANEL SYSTEMS WITH A NESTED SIDELAP AND METHOD OF SECURINGMay 12, 16Nov 17, 16[E04C, E04D]
2016/0177,411 HOT ROLLED LIGHT-GAUGE MARTENSITIC STEEL SHEET AND METHOD FOR MAKING THE SAMEDec 18, 15Jun 23, 16[C22C, C21D, B22D]
2016/0107,226 Method of Continuous CastingOct 16, 15Apr 21, 16[B22D]
2015/0336,156 THREADED REBAR MANUFACTURING PROCESS AND SYSTEMDec 23, 14Nov 26, 15[B21D]
2015/0318,093 ELECTRICAL STEEL PROCESSING WITHOUT A POST COLD-ROLLING INTERMEDIATE ANNEALJul 13, 15Nov 05, 15[H01F, C22C, C21D]
2014/0326,364 ELECTRICAL STEEL PROCESSING WITHOUT A POST COLD-ROLLING INTERMEDIATE ANNEALJul 17, 14Nov 06, 14[H01F, C21D]
2014/0319,441 ROADWAY GUARDRAIL SYSTEMJul 09, 14Oct 30, 14[E01F]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9919399 Roll polisher apparatus and methodSep 17, 13Mar 20, 18[B24B]
9863106 Roadway guardrail systemJul 09, 14Jan 09, 18[E01F]
9863146 Structural panel systems with a nested sidelap and method of securingMay 12, 16Jan 09, 18[E04C, E04D, E04B]
9855594 Threaded rebar manufacturing process and systemDec 23, 14Jan 02, 18[B21D, B21B, B21H, E04C]
9845599 Structural steel decking system and method of securingApr 17, 15Dec 19, 17[E04C, E04B]
9797430 Weldless building structuresJan 05, 16Oct 24, 17[F16B, E04C, E04B]
9744589 Method and apparatus for controlling variable shell thickness in cast stripJan 07, 15Aug 29, 17[B22C, B22D]
9677263 Composite joist floor systemJan 21, 16Jun 13, 17[F16B, E04C, E04B]
9611644 Composite wall systemFeb 27, 14Apr 04, 17[F16B, E04C, E04B]
9555508 Truss supply and rigging table systems and methodsApr 30, 12Jan 31, 17[B23P, B25B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0330,708 FURNACE CONTROL FOR MANUFACTURING STEEL USING SLAG HEIGHT MEASUREMENT AND OFF-GAS ANALYSIS SYSTEMSAbandonedMay 16, 14Nov 19, 15[F27D, C21C]
2015/0175,888 PYROLYZER FURNACE APPARATUS AND METHOD FOR OPERATION THEREOFAbandonedMar 03, 15Jun 25, 15[C10B, B30B, C10L]
2015/0175,889 PYROLYZER FURNACE APPARATUS AND METHOD FOR OPERATION THEREOFAbandonedMar 03, 15Jun 25, 15[C10B, C10L]
2015/0176,108 HIGH STRENGTH HIGH DUCTILITY HIGH COPPER LOW ALLOY THIN CAST STRIP PRODUCT AND METHOD FOR MAKING THE SAMEAbandonedDec 10, 14Jun 25, 15[C23C, C21D, C22C, B22D]
8919167 Threaded rebar manufacturing process and systemWithdrawnJan 18, 11Dec 30, 14[B21B, E04C]
2014/0367,065 THIN ROLL STRIP CASTER AND METHOD OF OPERATING THE SAMEAbandonedJun 14, 13Dec 18, 14[B22D]
2014/0353,464 HIGH STRENGTH REBARAbandonedJun 03, 14Dec 04, 14[E04C, E04G, C22C]
2014/0262,121 METHOD OF THIN STRIP CASTINGAbandonedMar 15, 13Sep 18, 14[B22D]
2014/0262,122 STRIP CASTING APPARATUS WITH IMPROVED SIDE DAM FORCE CONTROLAbandonedMar 15, 13Sep 18, 14[B22D]
2014/0237,935 ULTRA-HIGH STRENGTH REBARAbandonedFeb 26, 13Aug 28, 14[E04C, E04B, E04G]
8631853 Strip casting apparatus for rapid set and change of casting rollsExpiredDec 02, 11Jan 21, 14[B22D]
2014/0014,238 HIGH STRENGTH THIN CAST STRIP PRODUCT AND METHOD FOR MAKING THE SAMEAbandonedJul 16, 13Jan 16, 14[B22D]
2014/0008,032 SIDE DAM WITH INSERTAbandonedJun 27, 13Jan 09, 14[B22D]
8567082 Slew bearing systemExpiredAug 23, 11Oct 29, 13[G01B]
2013/0209,192 TENSIONABLE THREADED REBAR BOLTAbandonedJun 23, 11Aug 15, 13[E21D]
2013/0186,586 METHOD OF CONTINUOUSLY CASTING THIN STRIPAbandonedMar 13, 13Jul 25, 13[B22D]
2013/0126,121 METHOD OF CONTINUOUS CASTING THIN STEEL STRIPAbandonedNov 19, 12May 23, 13[B22D]
8444828 Pyrolyzer furnace apparatus and method for operation thereofExpiredDec 19, 07May 21, 13[C10B]
2013/0119,094 CASTING THIN STRIP AND DELIVERY NOZZLE THEREFORAbandonedMay 04, 12May 16, 13[B22D]
2013/0102,401 METHOD AND APPARATUS FOR MANUFACTURING A DUAL-THREADED BOLTAbandonedOct 18, 12Apr 25, 13[B21H, B23G]

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