NATIONAL STEEL CORPORATION

Organization

PITTSBURGH, PA, US

Ticker Symbols

NYSE:SID

STEEL WORKS, BLAST FURNACES & ROLLING & FINISHING MILLS
Business Address
RUA LAURO MULLER 116 36 ANDAR RIO DE JANEIRO RJ BR D5 00000
State Location
D5
State of Incorporation

Organizations

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Patents Grantslast 30 patents

Information Patent Grant
Tundish fluxing process
- Patent number 6,516,870
- Issue date Feb 11, 2003
- National Steel Corporation
- Sanjib Chakraborty
- C21 - METALLURGY OF IRON
Information Patent Grant
Bake-hardenable cold rolled steel sheet and method of producing same
- Patent number 6,143,100
- Issue date Nov 7, 2000
- National Steel Corporation
- Weiping Sun
- C21 - METALLURGY OF IRON
Information Patent Grant
Super low loss motor lamination steel
- Patent number 6,007,642
- Issue date Dec 28, 1999
- National Steel Corporation
- Eric E. Gallo
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of continuous casting using sealed tundish and improved tund...
- Patent number 5,645,121
- Issue date Jul 8, 1997
- National Steel Corporation
- Thomas Barnes
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Coke oven battery with communication system
- Patent number 5,600,564
- Issue date Feb 4, 1997
- National Steel Corporation
- James J. Tarasiewicz
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Bearing support for submerged rolls in hot dip coating operation
- Patent number 5,571,328
- Issue date Nov 5, 1996
- National Steel Corporation
- Franklin R. Newland
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Blow pipe and gas lance for blast furance
- Patent number 5,544,868
- Issue date Aug 13, 1996
- National Steel Corporation
- Guy Randall
- C21 - METALLURGY OF IRON
Information Patent Grant
Method and apparatus for performing cup earing test
- Patent number 5,485,387
- Issue date Jan 16, 1996
- National Steel Corporation
- Eric M. Franke-Polz
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Steel strip annealing and coating apparatus
- Patent number 5,174,822
- Issue date Dec 29, 1992
- National Steel Corporation
- George A. Nabhan
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Bearing support for hot dip metal coating roll
- Patent number 5,099,780
- Issue date Mar 31, 1992
- National Steel Corporation
- Robert W. Nappier
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Oil spray coating booth
- Patent number 5,078,089
- Issue date Jan 7, 1992
- National Steel Corporation
- Raymond Dugan
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Metal strip edge trimming apparatus
- Patent number 5,007,318
- Issue date Apr 16, 1991
- National Steel Corporation
- Laurence C. Cox
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Building panel mounting system
- Patent number 4,959,939
- Issue date Oct 2, 1990
- National Steel Corporation
- Robert H. Buchanan
- E04 - BUILDING
Information Patent Grant
Containment fence for runout table
- Patent number 4,945,746
- Issue date Aug 7, 1990
- National Steel Corporation
- Christopher C. Jakimowicz
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Ceramic brick retainer band for steel ladle
- Patent number 4,886,247
- Issue date Dec 12, 1989
- National Steel Corporation
- Donald B. Hoffman
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Shroud tube support and changing device
- Patent number 4,854,488
- Issue date Aug 8, 1989
- National Steel Corporation
- Charles Trenkle
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Galvanneal induction furnace temperature control system
- Patent number 4,845,332
- Issue date Jul 4, 1989
- National Steel Corp.
- David G. Jancosek
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electric induction heat treating furnace
- Patent number 4,761,530
- Issue date Aug 2, 1988
- National Steel Corporation
- Ronald W. Scherer
- C21 - METALLURGY OF IRON
Information Patent Grant
Metallurgical ladle with improved tilting lug
- Patent number 4,717,125
- Issue date Jan 5, 1988
- National Steel Corporation
- John D. Ficke
- C21 - METALLURGY OF IRON
Information Patent Grant
Method and apparatus for controlling the level of liquid metal in a...
- Patent number 4,625,787
- Issue date Dec 2, 1986
- National Steel Corporation
- David L. Haveman
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method of striping hot steel slabs
- Patent number 4,615,377
- Issue date Oct 7, 1986
- National Steel Corporation
- Eugene Whitaker
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Shroud tube manipulating and supporting apparatus
- Patent number 4,550,867
- Issue date Nov 5, 1985
- National Steel Corporation
- John R. Bell
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method and apparatus useful in cooling hot strip
- Patent number 4,497,180
- Issue date Feb 5, 1985
- National Steel Corporation
- Howard A. Graham
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus for and method of repairing bottom lining of a converter
- Patent number 4,479,637
- Issue date Oct 30, 1984
- National Steel Corporation
- William H. Sangster
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of and apparatus for hot dip coating of steel strip
- Patent number 4,478,892
- Issue date Oct 23, 1984
- National Steel Corporation
- Paul E. Amberson
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of forming D&I cans from coated steel
- Patent number 4,457,150
- Issue date Jul 3, 1984
- National Steel Corporation
- William T. Saunders
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Nickel-zinc alloy coated drawn and ironed can
- Patent number 4,457,450
- Issue date Jul 3, 1984
- National Steel Corporation
- John R. Smith
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of repairing hot refractory brick walls
- Patent number 4,452,749
- Issue date Jun 5, 1984
- Modern Refractories Service Corp.
- Robert E. Kolvek
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Cleaning and treatment of etched cathode aluminum capacitor foil
- Patent number 4,432,846
- Issue date Feb 21, 1984
- National Steel Corporation
- LeRoy Honeycutt
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Process of electroplating a nickel-zinc alloy on steel strip
- Patent number 4,416,737
- Issue date Nov 22, 1983
- National Steel Corporation
- Lowell W. Austin
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
76439311 - CENTURA
- Serial number 76439311
- Registration number 2723988
- Filing date Aug 8, 2002
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
76298749 - NAX
- Serial number 76298749
- Filing date Aug 13, 2001
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
76118891 - N
- Serial number 76118891
- Registration number 2573063
- Filing date Aug 29, 2000
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
74086388 - N-A-X
- Serial number 74086388
- Registration number 1676548
- Filing date Aug 9, 1990
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
74086407 - NSQ
- Serial number 74086407
- Registration number 1672364
- Filing date Aug 9, 1990
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
74086416 - NAPAC-F
- Serial number 74086416
- Registration number 1676549
- Filing date Aug 9, 1990
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
74086391 - NAPAC
- Serial number 74086391
- Registration number 1672363
- Filing date Aug 9, 1990
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
74086406 - NSQ K
- Serial number 74086406
- Registration number 1728868
- Filing date Aug 9, 1990
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
73762613 - WINNING IS A PARTNERSHIP
- Serial number 73762613
- Registration number 1583051
- Filing date Nov 8, 1988
- National Steel Corporation
- 42 - Scientific and technological services and research and design relating thereto
Information Trademark
73761691 - SUPURLIN
- Serial number 73761691
- Registration number 1540115
- Filing date Nov 3, 1988
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
73761689 - NATEN
- Serial number 73761689
- Registration number 1541216
- Filing date Nov 3, 1988
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
73759121 - N NATIONAL STEEL
- Serial number 73759121
- Registration number 1543241
- Filing date Oct 24, 1988
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
73697192 - POWERPANEL
- Serial number 73697192
- Registration number 1500964
- Filing date Nov 23, 1987
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
73427311 - WEIRLITE
- Serial number 73427311
- Registration number 1291822
- Filing date May 24, 1983
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
73414131 - STRONGPANEL
- Serial number 73414131
- Registration number 1304681
- Filing date Feb 18, 1983
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
73362939 - NATIONAL ALUMINUM
- Serial number 73362939
- Registration number 1268872
- Filing date May 4, 1982
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
73356480 - NICKELRITE
- Serial number 73356480
- Registration number 1263956
- Filing date Mar 25, 1982
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
73331514 - SNO-MAN
- Serial number 73331514
- Registration number 1241123
- Filing date Oct 7, 1981
- National Steel Corporation
- 16 - Paper, cardboard and goods made from these materials, not included in other classes
Information Trademark
73250886 - STRONGDRAIN
- Serial number 73250886
- Registration number 1246827
- Filing date Feb 20, 1980
- National Steel Corporation
- 6 - Common metals and their alloys
Information Trademark
73152002 - SNO-MAN
- Serial number 73152002
- Registration number 1138423
- Filing date Dec 14, 1977
- NATIONAL STEEL CORPORATION
- 21 - Household or kitchen utensils and containers
Information Trademark
73104858 - STRONGTRIM
- Serial number 73104858
- Registration number 1066079
- Filing date Oct 29, 1976
- NATIONAL STEEL CORPORATION
- 6 - Common metals and their alloys
Information Trademark
73091952 - UNIKOTE
- Serial number 73091952
- Registration number 1057385
- Filing date Jun 29, 1976
- NATIONAL STEEL CORPORATION
- 6 - Common metals and their alloys
Information Trademark
73026816 - NACOR
- Serial number 73026816
- Registration number 1023121
- Filing date Jul 15, 1974
- NATIONAL STEEL CORPORATION
- 6 - Common metals and their alloys
Information Trademark
73020406 - NATIONAL ALUMINUM
- Serial number 73020406
- Registration number 1025630
- Filing date May 2, 1974
- NATIONAL STEEL CORPORATION
- 6 - Common metals and their alloys
Information Trademark
73020404 - NATIONAL ALUMINUM
- Serial number 73020404
- Registration number 1025629
- Filing date May 2, 1974
- NATIONAL STEEL CORPORATION
- 6 - Common metals and their alloys
Information Trademark
73017823 - ROUGH-CUT
- Serial number 73017823
- Registration number 1024086
- Filing date Apr 3, 1974
- NATIONAL STEEL CORPORATION
- 6 - Common metals and their alloys
Information Trademark
72426819 - HANNA
- Serial number 72426819
- Registration number 961269
- Filing date Jun 9, 1972
- NATIONAL STEEL CORPORATION
- 6 - Common metals and their alloys
Information Trademark
72418063 - N
- Serial number 72418063
- Registration number 951700
- Filing date Mar 13, 1972
- NATIONAL STEEL CORPORATION
- 6 - Common metals and their alloys
Information Trademark
72331929 - GCX
- Serial number 72331929
- Registration number 912309
- Filing date Jul 7, 1969
- NATIONAL STEEL CORPORATION
- 6 - Common metals and their alloys
Information Trademark
72329881 - N-A-X
- Serial number 72329881
- Registration number 885726
- Filing date Jun 12, 1969
- NATIONAL STEEL CORPORATION
- 6 - Common metals and their alloys

NATIONAL STEEL CORPORATION

Organization

Ticker Symbols

Business Address

State Location

State of Incorporation

Patents Grantslast 30 patents

Tundish fluxing process

Bake-hardenable cold rolled steel sheet and method of producing same

Super low loss motor lamination steel

Method of continuous casting using sealed tundish and improved tund...

Coke oven battery with communication system

Bearing support for submerged rolls in hot dip coating operation

Blow pipe and gas lance for blast furance

Method and apparatus for performing cup earing test

Steel strip annealing and coating apparatus

Bearing support for hot dip metal coating roll

Oil spray coating booth

Metal strip edge trimming apparatus

Building panel mounting system

Containment fence for runout table

Ceramic brick retainer band for steel ladle

Shroud tube support and changing device

Galvanneal induction furnace temperature control system

Electric induction heat treating furnace

Metallurgical ladle with improved tilting lug

Method and apparatus for controlling the level of liquid metal in a...

Method of striping hot steel slabs

Shroud tube manipulating and supporting apparatus

Method and apparatus useful in cooling hot strip

Apparatus for and method of repairing bottom lining of a converter

Method of and apparatus for hot dip coating of steel strip

Method of forming D&I cans from coated steel

Nickel-zinc alloy coated drawn and ironed can

Method of repairing hot refractory brick walls

Cleaning and treatment of etched cathode aluminum capacitor foil

Process of electroplating a nickel-zinc alloy on steel strip

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

76439311 - CENTURA

76298749 - NAX

76118891 - N

74086388 - N-A-X

74086407 - NSQ

74086416 - NAPAC-F

74086391 - NAPAC

74086406 - NSQ K

73762613 - WINNING IS A PARTNERSHIP

73761691 - SUPURLIN

73761689 - NATEN

73759121 - N NATIONAL STEEL

73697192 - POWERPANEL

73427311 - WEIRLITE

73414131 - STRONGPANEL

73362939 - NATIONAL ALUMINUM

73356480 - NICKELRITE

73331514 - SNO-MAN

73250886 - STRONGDRAIN

73152002 - SNO-MAN

73104858 - STRONGTRIM

73091952 - UNIKOTE

73026816 - NACOR

73020406 - NATIONAL ALUMINUM

73020404 - NATIONAL ALUMINUM

73017823 - ROUGH-CUT

72426819 - HANNA

72418063 - N

72331929 - GCX

72329881 - N-A-X