Assignee
CRUCIBLE MATERIALS CORP
US·72 granted patents·2 pending applications·1,207 citations·filing 1983–2006
Top patents by PatentIndex Score
74 records- 0191US4585473AMethod for making rare-earth element containing permanent magnetsCRUCIBLE MATERIALS CORP·Filed 1984·Granted Apr 29, 1986·79 cites·18 claims
- 0291US4544404AMethod for atomizing titaniumCRUCIBLE MATERIALS CORP·Filed 1985·Granted Oct 1, 1985·86 cites·19 claims
- 0388US5084091AMethod for producing titanium particlesCRUCIBLE MATERIALS CORP·Filed 1989·Granted Jan 28, 1992·60 cites·3 claims
- 0484US5447800AMartensitic hot work tool steel die block article and method of manufactureCRUCIBLE MATERIALS CORP·Filed 1993·Granted Sep 5, 1995·25 cites·13 claims
- 0581US7288157B2Corrosion and wear resistant alloyCRUCIBLE MATERIALS CORP·Filed 2006·Granted Oct 30, 2007·6 cites·7 claims
- 0680US5841046AHigh strength, corrosion resistant austenitic stainless steel and consolidated articleCRUCIBLE MATERIALS CORP·Filed 1996·Granted Nov 24, 1998·35 cites·14 claims
- 0779US5162064APermanent magnet having improved corrosion resistance and method for producing the sameCRUCIBLE MATERIALS CORP·Filed 1990·Granted Nov 10, 1992·27 cites·2 claims
- 0878US4588439AOxygen containing permanent magnet alloyCRUCIBLE MATERIALS CORP·Filed 1985·Granted May 13, 1986·27 cites·6 claims
- 0976US5900560ACorrosion resistant, high vanadium, powder metallurgy tool steel articles with improved metal to metal wear resistance and method for producing the sameCRUCIBLE MATERIALS CORP·Filed 1998·Granted May 4, 1999·28 cites·16 claims
- 1075US7615123B2Cold-work tool steel articleCRUCIBLE MATERIALS CORP·Filed 2006·Granted Nov 10, 2009·3 cites·5 claims
- 1174US6623690B1Clad power metallurgy article and method for producing the sameCRUCIBLE MATERIALS CORP·Filed 2001·Granted Sep 23, 2003·16 cites·10 claims
- 1274US4765836AWear and corrosion resistant articles made from pm alloyed ironsCRUCIBLE MATERIALS CORP·Filed 1986·Granted Aug 23, 1988·22 cites·9 claims
- 1373US6773824B2Clad power metallurgy article and method for producing the sameCRUCIBLE MATERIALS CORP·Filed 2003·Granted Aug 10, 2004·12 cites·11 claims
- 1469US5989490AWear resistant, powder metallurgy cold work tool steel articles having high impact toughness and a method for producing the sameCRUCIBLE MATERIALS CORP·Filed 1998·Granted Nov 23, 1999·18 cites·3 claims
- 1569US5830287AWear resistant, powder metallurgy cold work tool steel articles having high impact toughness and a method for producing the sameCRUCIBLE MATERIALS CORP·Filed 1997·Granted Nov 3, 1998·26 cites·2 claims
- 1668US4576642AAlloy composition and processCRUCIBLE MATERIALS CORP·Filed 1984·Granted Mar 18, 1986·23 cites·6 claims
- 1767US5522914ASulfur-containing powder-metallurgy tool steel articleCRUCIBLE MATERIALS CORP·Filed 1995·Granted Jun 4, 1996·28 cites·18 claims
- 1867US4994109AMethod for producing permanent magnet alloy particles for use in producing bonded permanent magnetsCRUCIBLE MATERIALS CORP·Filed 1989·Granted Feb 19, 1991·20 cites·9 claims
- 1966US5238482APrealloyed high-vanadium, cold work tool steel particles and methods for producing the sameCRUCIBLE MATERIALS CORP·Filed 1991·Granted Aug 24, 1993·14 cites·24 claims
- 2065US4849035ARare earth, iron carbon permanent magnet alloys and method for producing the sameCRUCIBLE MATERIALS CORP·Filed 1988·Granted Jul 18, 1989·17 cites·20 claims
- 2165US4769213AAge-hardenable stainless steel having improved machinabilityCRUCIBLE MATERIALS CORP·Filed 1986·Granted Sep 6, 1988·16 cites·12 claims
- 2265US4544523ACladding method for producing a lined alloy articleCRUCIBLE MATERIALS CORP·Filed 1983·Granted Oct 1, 1985·28 cites·3 claims
- 2364US5091020AMethod and particle mixture for making rare earth element, iron and boron permanent sintered magnetsCRUCIBLE MATERIALS CORP·Filed 1990·Granted Feb 25, 1992·19 cites·13 claims
- 2463US6419768B1Method for producing welded tubing having a uniform microstructureCRUCIBLE MATERIALS CORP·Filed 2001·Granted Jul 16, 2002·7 cites·10 claims
- 2563US5127970AMethod for producing rare earth magnet particles of improved coercivityCRUCIBLE MATERIALS CORP·Filed 1991·Granted Jul 7, 1992·22 cites·14 claims
- 2661US4609526AMethod for compacting alloy powderCRUCIBLE MATERIALS CORP·Filed 1984·Granted Sep 2, 1986·15 cites·9 claims
- 2760US5282904APermanent magnet having improved corrosion resistance and method for producing the sameCRUCIBLE MATERIALS CORP·Filed 1992·Granted Feb 1, 1994·14 cites·9 claims
- 2860US4942922AWelded corrosion-resistant ferritic stainless steel tubing having high resistance to hydrogen embrittlement and a cathodically protected heat exchanger containing the sameCRUCIBLE MATERIALS CORP·Filed 1988·Granted Jul 24, 1990·23 cites·24 claims
- 2959US5600554AMethods and apparatus for securing, integrating, and manipulating employee payroll and human resource informationCRUCIBLE MATERIALS CORP·Filed 1994·Granted Feb 4, 1997·158 cites·20 claims
- 3058US5344477APrealloyed high-vanadium, cold work tool steel particlesCRUCIBLE MATERIALS CORP·Filed 1993·Granted Sep 6, 1994·11 cites·6 claims
- 3157US6228445B1Austenitic stainless steel article having a passivated surface layerCRUCIBLE MATERIALS CORP·Filed 1999·Granted May 8, 2001·22 cites·20 claims
- 3257US5213610AMethod for atomizing a titanium-based materialCRUCIBLE MATERIALS CORP·Filed 1992·Granted May 25, 1993·18 cites·19 claims
- 3357US4999051ASystem and method for atomizing a titanium-based materialCRUCIBLE MATERIALS CORP·Filed 1989·Granted Mar 12, 1991·17 cites·33 claims
- 3456US6475263B1Silicon aluminum alloy of prealloyed powder and method of manufactureCRUCIBLE MATERIALS CORP·Filed 2001·Granted Nov 5, 2002·4 cites·8 claims
- 3556US5936169ACorrosion resistant, high vanadium, powder metallurgy tool steel articles with improved metal to metal wear resistance and a method for producing the sameCRUCIBLE MATERIALS CORP·Filed 1997·Granted Aug 10, 1999·17 cites·16 claims
- 3656US4902360APermanent magnet alloy for elevated temperature applicationsCRUCIBLE MATERIALS CORP·Filed 1988·Granted Feb 20, 1990·11 cites·18 claims
- 3755US5589009ARE-Fe-B magnets and manufacturing method for the sameCRUCIBLE MATERIALS CORP·Filed 1995·Granted Dec 31, 1996·12 cites·8 claims
- 3855US5435824AHot-isostatically-compacted martensitic mold and die block article and method of manufactureCRUCIBLE MATERIALS CORP·Filed 1993·Granted Jul 25, 1995·9 cites·14 claims
- 3954US5679908ACorrosion resistant, high vanadium, powder metallurgy tool steel articles with improved metal to metal wear resistance and a method for producing the sameCRUCIBLE MATERIALS CORP·Filed 1995·Granted Oct 21, 1997·11 cites·11 claims
- 4054US4881984AConsolidation of magnet alloy powders by extrusion and product therefromCRUCIBLE MATERIALS CORP·Filed 1988·Granted Nov 21, 1989·11 cites·2 claims
- 4152US5482531ATitanium-free, nickel-containing maraging steel die block article and method of manufactureCRUCIBLE MATERIALS CORP·Filed 1995·Granted Jan 9, 1996·13 cites·15 claims
- 4247US6057045AHigh-speed steel articleCRUCIBLE MATERIALS CORP·Filed 1997·Granted May 2, 2000·12 cites·15 claims
- 4347US5480471ARe-Fe-B magnets and manufacturing method for the sameCRUCIBLE MATERIALS CORP·Filed 1994·Granted Jan 2, 1996·8 cites·15 claims
- 4447US4915891AMethod for producing a noncircular permanent magnetCRUCIBLE MATERIALS CORP·Filed 1987·Granted Apr 10, 1990·8 cites·6 claims
- 4545US5538683ATitanium-free, nickel-containing maraging steel die block article and method of manufactureCRUCIBLE MATERIALS CORP·Filed 1993·Granted Jul 23, 1996·9 cites·10 claims
- 4645US4990307AMethod for producing particles for the production of permanent magnetsCRUCIBLE MATERIALS CORP·Filed 1988·Granted Feb 5, 1991·7 cites·14 claims
- 4745US4721538APermanent magnet alloyCRUCIBLE MATERIALS CORP·Filed 1986·Granted Jan 26, 1988·7 cites·1 claims
- 4845US4564401AMethod for producing iron-silicon alloy articlesCRUCIBLE MATERIALS CORP·Filed 1983·Granted Jan 14, 1986·8 cites·19 claims
- 4945US2007053784A1Maraging steel article and method of manufactureCRUCIBLE MATERIALS CORP·Filed 2005·Application pending·0 cites
- 5044US4640815AMethod and assembly for producing extrusion-clad tubular productCRUCIBLE MATERIALS CORP·Filed 1985·Granted Feb 3, 1987·12 cites·8 claims
Showing the top 50 of 74 patent records by PatentIndex Score.
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