Assignee

USINOR

FR114 patents

Top patents by PatentIndex Score

US6358338B1Mar 19, 2002

Process for manufacturing strip made of an iron-carbon-manganese alloy, and strip thus produced

USINOR88 citations94

US6096441AAug 1, 2000

Austenoferritic stainless steel having a very low nickel content and a high tensile elongation

USINOR104 citations94

US7462251B2Dec 9, 2008

Method for making an abrasion-resistant steel plate

USINOR18 citations92

US6564604B2May 20, 2003

Process for the manufacture of a part with very high mechanical properties, formed by stamping of a strip of rolled steel sheet and more particularly hot rolled and coated

USINOR89 citations92

US4833903AMay 30, 1989

Method and device for press-forming sheet metal

USINOR35 citations91

US6106638AAug 22, 2000

Process for manufacturing thin strip of ferritic stainless steel, and thin strip thus obtained

USINOR22 citations90

US6387535B1May 14, 2002

Sheet having a multilayer structure

USINOR40 citations89

US4437651AMar 20, 1984

Cooling plate for blast-furnaces

USINOR48 citations89

US6588494B1Jul 8, 2003

Method for continuous casting of highly ductile ferritic stainless steel strips between rolls, and resulting thin strips

USINOR34 citations88

US6328826B1Dec 11, 2001

Method of fabricating “TRIP” steel in the form of thin strip, and thin strip obtained in this way

USINOR44 citations88

US6592968B1Jul 15, 2003

Composite sheet intended for drawing, comprising a main sheet and at least one adhesively bonded patching sheet blank as a patch

USINOR35 citations87

US6051058AApr 18, 2000

Protective coating comprising boron nitride for refractory material members of an ingot mold for continuous casting of metals

USINOR33 citations87

US6086689AJul 11, 2000

Process for manufacturing a foil of ferritic stainless steel having a high aluminum content, aluminum-containing ferritic stainless steel, and catalyst support useful for a motor-vehicle exhaust

USINOR26 citations86

US6056917AMay 2, 2000

Austenitic stainless steel having a very low nickel content

USINOR37 citations86

US6398286B1Jun 4, 2002

Reinforced and lightweight motor-vehicle bonnett

USINOR27 citations85

US7416615B2Aug 26, 2008

Very-high-strength and low-density, hot-rolled steel sheet and manufacturing process

USINOR9 citations80

US6082437AJul 4, 2000

Side wall for closing off the casting space of a plant for the twin-roll continuous casting of thin metal strip

USINOR17 citations80

US6852180B1Feb 8, 2005

Method for making carbon steel bands, in particular packaging steel bands, and resulting bands

USINOR17 citations76

US4191410AMar 4, 1980

Device for assembling in particular two sections of a blast downpipe of a blast furnace

USINOR23 citations76

US6582835B2Jun 24, 2003

Coated ferrite stainless steel sheet usable in the automobile exhaust sector

USINOR17 citations75

US7699947B2Apr 20, 2010

Ultrahigh strength hot-rolled steel and method of producing bands

USINOR11 citations73

US6914213B2Jul 5, 2005

Method and device for overlapping welding of two coated metal sheets with a beam of high energy density

USINOR19 citations73

USRE37214EJun 12, 2001

Device for continuous casting between rolls with applied side dams

USINOR13 citations73

US7258157B2Aug 21, 2007

Lateral face of an installation used for the twin-roll continuous casting of metal bands

USINOR8 citations71

US6033485AMar 7, 2000

Process for the pickling of metallic materials

USINOR10 citations71

US7674339B2Mar 9, 2010

Method for the plasma cleaning of the surface of a material coated with an organic substance and the installation for carrying out said method

USINOR6 citations70

US6896747B2May 24, 2005

Austenitic alloy for heat strength with improved pouring and manufacturing, process for manufacturing billets and wire

USINOR7 citations70

US6739383B1May 25, 2004

Method for continuously casting between two rolls austenitic stainless steel strips with excellent surface quality and resulting strips

USINOR9 citations70

US4289005ASep 15, 1981

Process and device for controlling the flatness of a cold-rolled metal sheet

USINOR27 citations70

US6709372B2Mar 23, 2004

Roller for metal strip transfer in a continuous annealing furnace

USINOR7 citations69

US6685763B1Feb 3, 2004

Treatment for improving the castability of aluminum killed continuously cast steel

USINOR8 citations69

US6682828B2Jan 27, 2004

Steel sheet provided with a coating comprising a main layer of zinc-chromium alloy the predominant phase of which has a delta and/or zeta structure

USINOR6 citations69

US6622779B1Sep 23, 2003

Method for continuously casting ferritic stainless steel strips free of microcracks

USINOR9 citations69

US6454861B1Sep 24, 2002

Method and apparatus for detecting surface defects on a band travelling at high speed

USINOR22 citations69

US4186629AFeb 5, 1980

Device for untightening and tightening nuts

USINOR22 citations69

US6419004B1Jul 16, 2002

Mold or wide cross section for the hot-top vertical continuous casting of metals

USINOR10 citations68

US4762653AAug 9, 1988

Process for preparing especially metallic and semi-metallic bands of small thickness

USINOR16 citations68

US4185648AJan 29, 1980

Machine for treating sheets of variable width

USINOR7 citations68

US4185649AJan 29, 1980

Arrangement of the input and output ends of a metal sheet cooling machine

USINOR12 citations68

US5992196ANov 30, 1999

Process for pickling a piece of steel and in particular a sheet strip of stainless steel

USINOR11 citations67

US4720310AJan 19, 1988

Process for effecting the controlled cooling of metal sheets

USINOR9 citations67

US4436791AMar 13, 1984

Cast cold rolling roll

USINOR8 citations67

US6228242B1May 8, 2001

Process and plant for electrolytically coating surface of a roll, for the continuous casting of thin metal strip, with a metal laser

USINOR13 citations66

US4594272AJun 10, 1986

Process and device for manufacturing sheet metal or galvanized steel strip devoid of a pure zinc coating on at least one side

USINOR9 citations66

US6565622B1May 20, 2003

Method for denitriding molten steel during its production

USINOR6 citations65

US4852995AAug 1, 1989

Process for desulfurizing fuel gas containing sulfur

USINOR9 citations65

US4150712AApr 24, 1979

Continuous-casting mould provided with an electromagnetic stirring device

USINOR19 citations65

Showing the top 50 of 114 patents by PatentIndex Score.

USINOR

Top patents by PatentIndex Score

Process for manufacturing strip made of an iron-carbon-manganese alloy, and strip thus produced

Austenoferritic stainless steel having a very low nickel content and a high tensile elongation

Method for making an abrasion-resistant steel plate

Process for the manufacture of a part with very high mechanical properties, formed by stamping of a strip of rolled steel sheet and more particularly hot rolled and coated

Method and device for press-forming sheet metal

Process for manufacturing thin strip of ferritic stainless steel, and thin strip thus obtained

Sheet having a multilayer structure

Cooling plate for blast-furnaces

Method for continuous casting of highly ductile ferritic stainless steel strips between rolls, and resulting thin strips

Method of fabricating “TRIP” steel in the form of thin strip, and thin strip obtained in this way

Composite sheet intended for drawing, comprising a main sheet and at least one adhesively bonded patching sheet blank as a patch

Protective coating comprising boron nitride for refractory material members of an ingot mold for continuous casting of metals

Process for manufacturing a foil of ferritic stainless steel having a high aluminum content, aluminum-containing ferritic stainless steel, and catalyst support useful for a motor-vehicle exhaust

Austenitic stainless steel having a very low nickel content

Reinforced and lightweight motor-vehicle bonnett

Very-high-strength and low-density, hot-rolled steel sheet and manufacturing process

Side wall for closing off the casting space of a plant for the twin-roll continuous casting of thin metal strip

Method for making carbon steel bands, in particular packaging steel bands, and resulting bands

Device for assembling in particular two sections of a blast downpipe of a blast furnace

Coated ferrite stainless steel sheet usable in the automobile exhaust sector

Ultrahigh strength hot-rolled steel and method of producing bands

Method and device for overlapping welding of two coated metal sheets with a beam of high energy density

Device for continuous casting between rolls with applied side dams

Lateral face of an installation used for the twin-roll continuous casting of metal bands

Process for the pickling of metallic materials

Method for the plasma cleaning of the surface of a material coated with an organic substance and the installation for carrying out said method

Austenitic alloy for heat strength with improved pouring and manufacturing, process for manufacturing billets and wire

Method for continuously casting between two rolls austenitic stainless steel strips with excellent surface quality and resulting strips

Process and device for controlling the flatness of a cold-rolled metal sheet

Roller for metal strip transfer in a continuous annealing furnace

Treatment for improving the castability of aluminum killed continuously cast steel

Steel sheet provided with a coating comprising a main layer of zinc-chromium alloy the predominant phase of which has a delta and/or zeta structure

Method for continuously casting ferritic stainless steel strips free of microcracks

Coating plant for obtaining a coated sheet

Coal gasification installation

Coal gasification reactor of the type employing a bath of liquid metal

Method and apparatus for detecting surface defects on a band travelling at high speed

Device for untightening and tightening nuts

Mold or wide cross section for the hot-top vertical continuous casting of metals

Process for preparing especially metallic and semi-metallic bands of small thickness

Machine for treating sheets of variable width

Arrangement of the input and output ends of a metal sheet cooling machine

Process for pickling a piece of steel and in particular a sheet strip of stainless steel

Process for effecting the controlled cooling of metal sheets

Cast cold rolling roll

Process and plant for electrolytically coating surface of a roll, for the continuous casting of thin metal strip, with a metal laser

Process and device for manufacturing sheet metal or galvanized steel strip devoid of a pure zinc coating on at least one side

Method for denitriding molten steel during its production

Process for desulfurizing fuel gas containing sulfur

Continuous-casting mould provided with an electromagnetic stirring device