Assignee
ARMCO INC
US235 patents
Top patents by PatentIndex Score
US5736709AApr 7, 1998
Descaling metal with a laser having a very short pulse width and high average power
ARMCO INC203 citations98
US5455080AOct 3, 1995
Metal substrate with enhanced corrosion resistance and improved paint adhesion
ARMCO INC43 citations96
US4550782ANov 5, 1985
Method and apparatus for independent support of well pipe hangers
ARMCO INC121 citations96
US4497592AFeb 5, 1985
Self-levelling underwater structure
ARMCO INC67 citations96
US4427072AJan 24, 1984
Method and apparatus for deep underwater well drilling and completion
ARMCO INC58 citations96
US5326594AJul 5, 1994
Metal pretreated with an inorganic/organic composite coating with enhanced paint adhesion
ARMCO INC73 citations95
US4468551AAug 28, 1984
Laser treatment of electrical steel and optical scanning assembly therefor
ARMCO INC98 citations95
US4223346ASep 16, 1980
Automatic defect detecting inspection apparatus
ARMCO INC76 citations95
US5292549AMar 8, 1994
Metallic coated steel having a siloxane film providing temporary corrosion protection and method therefor
ARMCO INC114 citations94
US5089067AFeb 18, 1992
Martensitic stainless steel
ARMCO INC62 citations94
US4192383AMar 11, 1980
Offshore multiple well drilling and production apparatus
ARMCO INC58 citations94
US5567224AOct 22, 1996
Method of reducing metal oxide in a rotary hearth furnace heated by an oxidizing flame
ARMCO INC81 citations93
US4438817AMar 27, 1984
Subsea well with retrievable piping deck
ARMCO INC57 citations93
US4302499ANov 24, 1981
Moldable composite
ARMCO INC62 citations93
US4152471AMay 1, 1979
Method for continuously contact-coating one side only of a ferrous base metal strip with a molten coating metal
ARMCO INC42 citations93
US5539031AJul 23, 1996
Metal substrate with enhanced corrosion resistance and improved paint adhesion
ARMCO INC28 citations92
US5498481AMar 12, 1996
Metal substrate with enhanced corrosion resistance and improved paint adhesion
ARMCO INC30 citations92
US5478655ADec 26, 1995
Metal pretreated with an inorganic/organic composite coating with enhanced paint adhesion
ARMCO INC39 citations92
US5421911AJun 6, 1995
Regular grain oriented electrical steel production process
ARMCO INC26 citations92
US5322713AJun 21, 1994
Metal sheet with enhanced corrosion resistance having a silane treated aluminate coating
ARMCO INC49 citations92
US5127736AJul 7, 1992
Apparatus for measuring wear in the lining of refractory furnaces
ARMCO INC32 citations92
US5045668ASep 3, 1991
Apparatus and method for automatically aligning a welding device for butt welding workpieces
ARMCO INC125 citations92
US4708482ANov 24, 1987
Method and apparatus for measuring wear in the lining of refractory furnaces
ARMCO INC29 citations92
US4599046AJul 8, 1986
Control improvements in deep well pumps
ARMCO INC30 citations92
US4528738AJul 16, 1985
Dual ring casing hanger
ARMCO INC33 citations92
US4496399AJan 29, 1985
Method and aqueous coating compositions for forming anti-stick and insulative coatings on semi-processed and fully-processed electrical steels
ARMCO INC37 citations92
US4491351AJan 1, 1985
Helical coil stab-in connector
ARMCO INC43 citations92
US4490073ADec 25, 1984
Multiple flowline connector
ARMCO INC47 citations92
US4486319ADec 4, 1984
Microporous ionomer polymer lubricating composition
ARMCO INC34 citations92
US4460042AJul 17, 1984
Dual ring casing hanger
ARMCO INC38 citations92
US4456812AJun 26, 1984
Laser treatment of electrical steel
ARMCO INC50 citations92
US4449583AMay 22, 1984
Well devices with annulus check valve and hydraulic by-pass
ARMCO INC36 citations92
US4422618ADec 27, 1983
Remotely operated valve
ARMCO INC32 citations92
US4408932AOct 11, 1983
Subsea template levelling system and method
ARMCO INC32 citations92
US4211281AJul 8, 1980
Articulated plural well deep water production system
ARMCO INC35 citations92
US4167970ASep 18, 1979
Hanger apparatus for suspending pipes
ARMCO INC32 citations92
US5651413AJul 29, 1997
In-situ conditioning of a strip casting roll
ARMCO INC45 citations91
US5433976AJul 18, 1995
Metal pretreated with an aqueous solution containing a dissolved inorganic silicate or aluminate, an organofuctional silane and a non-functional silane for enhanced corrosion resistance
ARMCO INC84 citations91
US5117081AMay 26, 1992
Roll roundness measuring and machining apparatus and method
ARMCO INC44 citations91
US4883723ANov 28, 1989
Hot dip aluminum coated chromium alloy steel
ARMCO INC29 citations91
US4662708AMay 5, 1987
Optical scanning system for laser treatment of electrical steel and the like
ARMCO INC31 citations91
US4640722AFeb 3, 1987
High temperature ferritic steel
ARMCO INC31 citations91
US4554029ANov 19, 1985
Local heat treatment of electrical steel
ARMCO INC30 citations91
US4524546AJun 25, 1985
Roll profile gauge
ARMCO INC42 citations91
US4439068AMar 27, 1984
Releasable guide post mount and method for recovering guide posts by remote operations
ARMCO INC76 citations91
US4330574AMay 18, 1982
Finishing method for conventional hot dip coating of a ferrous base metal strip with a molten coating metal
ARMCO INC54 citations91
US5783622AJul 21, 1998
Precoated chromium alloyed steel with enhanced paint adhesion for exhaust applications
ARMCO INC22 citations90
US5743968AApr 28, 1998
Hydrogen peroxide pickling of stainless steel
ARMCO INC24 citations90
US5234490AAug 10, 1993
Operating a blast furnace using dried top gas
ARMCO INC38 citations90
US5125745AJun 30, 1992
Automatic BOF vessel remaining lining profiler and method
ARMCO INC32 citations90
Showing the top 50 of 235 patents by PatentIndex Score.