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NORTH AMERICAN REFRACTORIES
US40 patents
Top patents by PatentIndex Score
US6554167B1Apr 29, 2003
Impact pad
NORTH AMERICAN REFRACTORIES23 citations90
US6673306B2Jan 6, 2004
Refractory lining for metallurgical vessel
NORTH AMERICAN REFRACTORIES20 citations89
US5972102AOct 26, 1999
Hydraulically-bonded monolithic refractories containing a calcium oxide-free binder comprised of a hydratable alumina source and magnesium oxide
NORTH AMERICAN REFRACTORIES27 citations89
US5944888AAug 31, 1999
Spray insulating coating for refractory articles
NORTH AMERICAN REFRACTORIES40 citations87
US5766686AJun 16, 1998
Spray insulating coating for refractory articles
NORTH AMERICAN REFRACTORIES33 citations87
US5976632ANov 2, 1999
Dry process gunning of refractory castable
NORTH AMERICAN REFRACTORIES30 citations85
US5137189AAug 11, 1992
Porous refractory nozzle and method of making same
NORTH AMERICAN REFRACTORIES23 citations85
US5792251AAug 11, 1998
Method of producing metakaolin
NORTH AMERICAN REFRACTORIES20 citations84
US5687531ANov 18, 1997
Horizontal flue technology for carbon baking furnace
NORTH AMERICAN REFRACTORIES28 citations83
US6787098B2Sep 7, 2004
Refractory lining for metallurgical vessel
NORTH AMERICAN REFRACTORIES13 citations80
US4940081AJul 10, 1990
Checker brick
NORTH AMERICAN REFRACTORIES22 citations80
US9126265B2Sep 8, 2015
Refractory component for lining a metallurgical vessel
NORTH AMERICAN REFRACTORIES8 citations79
US5135896AAug 4, 1992
Spinel bondable ceramic composition
NORTH AMERICAN REFRACTORIES21 citations79
US6548436B2Apr 15, 2003
Cristobalite-free mullite grain having reduced reactivity to molten aluminum and method of producing the same
NORTH AMERICAN REFRACTORIES13 citations78
US6004626ADec 21, 1999
High pressure/volume process for wet shotcreting a refractory castable
NORTH AMERICAN REFRACTORIES18 citations75
US5916471AJun 29, 1999
Rotary socket taphole assembly
NORTH AMERICAN REFRACTORIES12 citations72
US5866022AFeb 2, 1999
Refractory pour tube with cast plate
NORTH AMERICAN REFRACTORIES12 citations72
US5976240ANov 2, 1999
Refractory system including reactive metakaolin additive
NORTH AMERICAN REFRACTORIES12 citations71
US5531586AJul 2, 1996
Interlocking checker brick mold
NORTH AMERICAN REFRACTORIES7 citations71
US5358031AOct 25, 1994
Interlocking checker bricks and method and apparatus for making
NORTH AMERICAN REFRACTORIES7 citations71
US6054186AApr 25, 2000
Low cement refractory castable system for wet process pumping/spraying
NORTH AMERICAN REFRACTORIES11 citations70
US5902511AMay 11, 1999
Refractory composition for the prevention of alumina clogging
NORTH AMERICAN REFRACTORIES8 citations70
US6407023B1Jun 18, 2002
Cristobalite-free mullite grain having reduced reactivity to molten aluminum and method of producing the same
NORTH AMERICAN REFRACTORIES7 citations68
US5948713ASep 7, 1999
Cristobalite-free mullite grain and method of producing same
NORTH AMERICAN REFRACTORIES14 citations67
US6103651AAug 15, 2000
High density ceramic metal composite exhibiting improved mechanical properties
NORTH AMERICAN REFRACTORIES14 citations65
US4726570AFeb 23, 1988
Apparatus and method for casting refractory linings in ladles
NORTH AMERICAN REFRACTORIES16 citations64
US5478053ADec 26, 1995
Refractory gas purging device
NORTH AMERICAN REFRACTORIES16 citations63
US6221313B1Apr 24, 2001
Taphole knockout device
NORTH AMERICAN REFRACTORIES3 citations61
US5730921AMar 24, 1998
Co-molding process for producing refractory materials without firing or coking the refractory
NORTH AMERICAN REFRACTORIES2 citations61
US7468157B2Dec 23, 2008
Impact pad for metallurgical vessels
NORTH AMERICAN REFRACTORIES3 citations60
US5299629AApr 5, 1994
Interlocking checker bricks
NORTH AMERICAN REFRACTORIES6 citations60
US4971934ANov 20, 1990
Refractory composition
NORTH AMERICAN REFRACTORIES15 citations60
US5968602AOct 19, 1999
Cement-free refractory castable system for wet process pumping/spraying
NORTH AMERICAN REFRACTORIES3 citations59
US8030235B2Oct 4, 2011
Refractory brick for steel ladles
NORTH AMERICAN REFRACTORIES5 citations58
US5397110AMar 14, 1995
Refractory brick and method of making and using same
NORTH AMERICAN REFRACTORIES4 citations52
US7056469B2Jun 6, 2006
Starter set for brick lining of ladles used in handling molten metal
NORTH AMERICAN REFRACTORIES5 citations50
US6763981B2Jul 20, 2004
Well block for metallurgical vessel
NORTH AMERICAN REFRACTORIES4 citations50
US5474726ADec 12, 1995
Method of making interlocking checker bricks
NORTH AMERICAN REFRACTORIES0 citations50
US8354056B2Jan 15, 2013
Refractory component with locking surface and method of forming the same
NORTH AMERICAN REFRACTORIES0 citations48
US7611666B2Nov 3, 2009
Tundish dry vibratable form
NORTH AMERICAN REFRACTORIES2 citations44