Assignee
ALLEGHENY LUDLUM STEEL
67 granted patents·1,074 citations·filing 1977–1985
Top patents by PatentIndex Score
67 records- 0195US4414023AIron-chromium-aluminum alloy and article and method thereforALLEGHENY LUDLUM STEEL·Filed 1982·Granted Nov 8, 1983·137 cites·23 claims
- 0294US4366971ACorrosion resistant tube assemblyALLEGHENY LUDLUM STEEL·Filed 1980·Granted Jan 4, 1983·292 cites·20 claims
- 0387US4409296ARapidly cast alloy strip having dissimilar portionsALLEGHENY LUDLUM STEEL·Filed 1980·Granted Oct 11, 1983·48 cites·21 claims
- 0486US4255494ASintered ferromagnetic powder metal parts for alternating current applicationsALLEGHENY LUDLUM STEEL·Filed 1979·Granted Mar 10, 1981·35 cites·10 claims
- 0584US4545826AMethod for producing a weldable austenitic stainless steel in heavy sectionsALLEGHENY LUDLUM STEEL·Filed 1984·Granted Oct 8, 1985·26 cites·12 claims
- 0682US4479528AStrip casting apparatusALLEGHENY LUDLUM STEEL·Filed 1982·Granted Oct 30, 1984·18 cites·21 claims
- 0778US4485839ARapidly cast alloy strip having dissimilar portionsALLEGHENY LUDLUM STEEL·Filed 1983·Granted Dec 4, 1984·15 cites·5 claims
- 0878US4286986AFerritic stainless steel and processing thereforALLEGHENY LUDLUM STEEL·Filed 1979·Granted Sep 1, 1981·22 cites·15 claims
- 0975US4461811AStabilized ferritic stainless steel with improved brazeabilityALLEGHENY LUDLUM STEEL·Filed 1982·Granted Jul 24, 1984·22 cites·17 claims
- 1075US4415415AMethod of controlling oxide scale formation and descaling thereof from metal articlesALLEGHENY LUDLUM STEEL·Filed 1982·Granted Nov 15, 1983·16 cites·17 claims
- 1172US4475583AStrip casting nozzleALLEGHENY LUDLUM STEEL·Filed 1983·Granted Oct 9, 1984·12 cites·11 claims
- 1271US4568387AAustenitic stainless steel for low temperature serviceALLEGHENY LUDLUM STEEL·Filed 1984·Granted Feb 4, 1986·19 cites·5 claims
- 1370US4363709AHigh current density, acid-free electrolytic descaling processALLEGHENY LUDLUM STEEL·Filed 1981·Granted Dec 14, 1982·16 cites·13 claims
- 1469US4277374AFerritic stainless steel substrate for catalytic systemALLEGHENY LUDLUM STEEL·Filed 1980·Granted Jul 7, 1981·29 cites·10 claims
- 1567US4525620AMethod of welding ferritic and austenitic stainless steels and product thereofALLEGHENY LUDLUM STEEL·Filed 1982·Granted Jun 25, 1985·19 cites·18 claims
- 1667US4277530AElectrical steel laminationALLEGHENY LUDLUM STEEL·Filed 1979·Granted Jul 7, 1981·17 cites·17 claims
- 1765US4514220AMethod for producing steel in a top-blown vesselALLEGHENY LUDLUM STEEL·Filed 1984·Granted Apr 30, 1985·8 cites·17 claims
- 1864US4582547AMethod for improving the annealing separator coating on silicon steel and coating thereforALLEGHENY LUDLUM STEEL·Filed 1984·Granted Apr 15, 1986·11 cites·10 claims
- 1963US4462824AAnnular tuyereALLEGHENY LUDLUM STEEL·Filed 1983·Granted Jul 31, 1984·7 cites·11 claims
- 2062US4533409AMethod and apparatus for reducing core losses of grain-oriented silicon steelALLEGHENY LUDLUM STEEL·Filed 1984·Granted Aug 6, 1985·19 cites·11 claims
- 2161US4524996ACorrosion-resistant tube assemblyALLEGHENY LUDLUM STEEL·Filed 1982·Granted Jun 25, 1985·30 cites·13 claims
- 2260US4477279AAnnular tuyere and methodALLEGHENY LUDLUM STEEL·Filed 1983·Granted Oct 16, 1984·8 cites·10 claims
- 2359US4450058AMethod for producing bright stainless steelALLEGHENY LUDLUM STEEL·Filed 1983·Granted May 22, 1984·12 cites·8 claims
- 2458US4533391AWork-hardenable substantially austenitic stainless steel and methodALLEGHENY LUDLUM STEEL·Filed 1983·Granted Aug 6, 1985·9 cites·19 claims
- 2557US4489901ACoil winding apparatusALLEGHENY LUDLUM STEEL·Filed 1983·Granted Dec 25, 1984·20 cites·7 claims
- 2657US4236945APhosphorus-iron powder and method of producing soft magnetic material therefromALLEGHENY LUDLUM STEEL·Filed 1978·Granted Dec 2, 1980·10 cites·4 claims
- 2756US4399860AApparatus for strip castingALLEGHENY LUDLUM STEEL·Filed 1980·Granted Aug 23, 1983·7 cites·34 claims
- 2855US4615730AMethod for refining molten metal bath to control nitrogenALLEGHENY LUDLUM STEEL·Filed 1985·Granted Oct 7, 1986·10 cites·8 claims
- 2954US4297132AElectroslag remelting method and flux compositionALLEGHENY LUDLUM STEEL·Filed 1980·Granted Oct 27, 1981·9 cites·24 claims
- 3053US4548655AMethod for producing cube-on-edge oriented silicon steelALLEGHENY LUDLUM STEEL·Filed 1983·Granted Oct 22, 1985·7 cites·5 claims
- 3153US4516736AMethod and apparatus for slitting metal stripALLEGHENY LUDLUM STEEL·Filed 1982·Granted May 14, 1985·12 cites·8 claims
- 3253US4456482AFerritic stainless steelALLEGHENY LUDLUM STEEL·Filed 1982·Granted Jun 26, 1984·11 cites·9 claims
- 3353US4450206AAmorphous metals and articles made thereofALLEGHENY LUDLUM STEEL·Filed 1982·Granted May 22, 1984·10 cites·8 claims
- 3452US4456483AFerritic stainless steelALLEGHENY LUDLUM STEEL·Filed 1982·Granted Jun 26, 1984·10 cites·9 claims
- 3552US4367100ASilicon steel and processing thereforeALLEGHENY LUDLUM STEEL·Filed 1979·Granted Jan 4, 1983·6 cites·6 claims
- 3651US4402769AMethod for improving the ductility of autogenous welds in unstabilized, ferritic stainless steel coilsALLEGHENY LUDLUM STEEL·Filed 1982·Granted Sep 6, 1983·8 cites·3 claims
- 3749US4482397AMethod for improving the magnetic permeability of grain oriented silicon steelALLEGHENY LUDLUM STEEL·Filed 1983·Granted Nov 13, 1984·6 cites·5 claims
- 3849US4260415ADecarburizing molten metalALLEGHENY LUDLUM STEEL·Filed 1979·Granted Apr 7, 1981·6 cites·12 claims
- 3947US4302658AWelding silicon steelALLEGHENY LUDLUM STEEL·Filed 1980·Granted Nov 24, 1981·7 cites·1 claims
- 4046US4410359AProcess for production of stainless steelALLEGHENY LUDLUM STEEL·Filed 1982·Granted Oct 18, 1983·4 cites·6 claims
- 4145US4529176AReplaceable seals for ladle heatersALLEGHENY LUDLUM STEEL·Filed 1983·Granted Jul 16, 1985·5 cites·5 claims
- 4244US4518101AMetering system for corrosive liquids and method thereforALLEGHENY LUDLUM STEEL·Filed 1983·Granted May 21, 1985·9 cites·9 claims
- 4342US4484996ACathode for use in electrolytic processing solutionALLEGHENY LUDLUM STEEL·Filed 1983·Granted Nov 27, 1984·5 cites·5 claims
- 4442US4244757AProcessing for cube-on-edge oriented silicon steelALLEGHENY LUDLUM STEEL·Filed 1979·Granted Jan 13, 1981·6 cites·10 claims
- 4539US4581073AMethod for descaling metal stripALLEGHENY LUDLUM STEEL·Filed 1984·Granted Apr 8, 1986·3 cites·8 claims
- 4639US4315776AMethod of producing light gage metallic strip materialALLEGHENY LUDLUM STEEL·Filed 1979·Granted Feb 16, 1982·7 cites·12 claims
- 4738US4576300AReusable shipping containerALLEGHENY LUDLUM STEEL·Filed 1984·Granted Mar 18, 1986·9 cites·23 claims
- 4838US4529443ASystem and method for producing steel in a top-blown vesselALLEGHENY LUDLUM STEEL·Filed 1984·Granted Jul 16, 1985·2 cites·9 claims
- 4937US4501316AMethod of casting amorphous metalsALLEGHENY LUDLUM STEEL·Filed 1983·Granted Feb 26, 1985·4 cites·2 claims
- 5037US4337101AProcessing for cube-on-edge oriented silicon steelALLEGHENY LUDLUM STEEL·Filed 1980·Granted Jun 29, 1982·4 cites·5 claims
Showing the top 50 of 67 patent records by PatentIndex Score.
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