Assignee
FANSTEEL INC
US·77 granted patents·3,749 citations·filing 1973–1997
Top patents by PatentIndex Score
77 records- 0198US6019434APoint attack bitFANSTEEL INC·Filed 1997·Granted Feb 1, 2000·216 cites·16 claims
- 0297US4714660AHard coatings with multiphase microstructuresFANSTEEL INC·Filed 1985·Granted Dec 22, 1987·168 cites·15 claims
- 0397US4484783ARetainer and wear sleeve for rotating mining bitsFANSTEEL INC·Filed 1982·Granted Nov 27, 1984·140 cites·10 claims
- 0496US4157181AGraphite fiber tapered shaftsFANSTEEL INC·Filed 1978·Granted Jun 5, 1979·153 cites·1 claims
- 0596US4099585ARoof drilling systemFANSTEEL INC·Filed 1977·Granted Jul 11, 1978·60 cites·3 claims
- 0695US4189264ACutting insert and chip control assemblyFANSTEEL INC·Filed 1978·Granted Feb 19, 1980·65 cites·9 claims
- 0795US4149876AProcess for producing tantalum and columbium powderFANSTEEL INC·Filed 1978·Granted Apr 17, 1979·161 cites·18 claims
- 0895US4084856ASelf-retaining sleeve and bitFANSTEEL INC·Filed 1976·Granted Apr 18, 1978·146 cites·2 claims
- 0994US4084965AColumbium powder and method of making the sameFANSTEEL INC·Filed 1977·Granted Apr 18, 1978·108 cites·18 claims
- 1093US4234333AProcess for recovering metal carbide powder from cemented carbidesFANSTEEL INC·Filed 1979·Granted Nov 18, 1980·40 cites·57 claims
- 1193US4073427ALined equipment with triclad wall constructionFANSTEEL INC·Filed 1976·Granted Feb 14, 1978·91 cites·16 claims
- 1293US4017302ATantalum metal powderFANSTEEL INC·Filed 1976·Granted Apr 12, 1977·124 cites·18 claims
- 1392US4632195ARoof drill systemFANSTEEL INC·Filed 1985·Granted Dec 30, 1986·71 cites·7 claims
- 1492US4141719ATantalum metal powderFANSTEEL INC·Filed 1977·Granted Feb 27, 1979·85 cites·31 claims
- 1592US4070020AComposite high strength to weight structure with fray resistanceFANSTEEL INC·Filed 1976·Granted Jan 24, 1978·68 cites·19 claims
- 1691US4291104ABrazed corrosion resistant lined equipmentFANSTEEL INC·Filed 1979·Granted Sep 22, 1981·61 cites·9 claims
- 1791US4062679AEmbrittlement-resistant tantalum wireFANSTEEL INC·Filed 1973·Granted Dec 13, 1977·44 cites·5 claims
- 1891US4009007ATantalum powder and method of making the sameFANSTEEL INC·Filed 1975·Granted Feb 22, 1977·70 cites·20 claims
- 1990US4162160AElectrical contact material and method for making the sameFANSTEEL INC·Filed 1977·Granted Jul 24, 1979·97 cites·27 claims
- 2090US4026605AMining toolFANSTEEL INC·Filed 1976·Granted May 31, 1977·35 cites·4 claims
- 2189US4763956AMining tool retainerFANSTEEL INC·Filed 1987·Granted Aug 16, 1988·67 cites·6 claims
- 2289US4357382ACoated cemented carbide bodiesFANSTEEL INC·Filed 1980·Granted Nov 2, 1982·93 cites·23 claims
- 2389US4248553ACutting insert configurationFANSTEEL INC·Filed 1978·Granted Feb 3, 1981·42 cites·6 claims
- 2489US4123848ABlock profile gaugeFANSTEEL INC·Filed 1977·Granted Nov 7, 1978·37 cites·7 claims
- 2588US5787332AProcess for recovering tantalum and/or niobium compounds from composites containing a variety of metal compoundsFANSTEEL INC·Filed 1996·Granted Jul 28, 1998·75 cites·22 claims
- 2688US4818629AJoint construction for lined equipmentFANSTEEL INC·Filed 1985·Granted Apr 4, 1989·78 cites·21 claims
- 2788US4235629AMethod for producing an embrittlement-resistant tantalum wireFANSTEEL INC·Filed 1977·Granted Nov 25, 1980·37 cites·4 claims
- 2888US4070021AComposite high strength to weight structure having shell and sleeved coreFANSTEEL INC·Filed 1976·Granted Jan 24, 1978·70 cites·16 claims
- 2987US4061520AMethod of making composite high strength to weight structureFANSTEEL INC·Filed 1976·Granted Dec 6, 1977·56 cites·4 claims
- 3086US4544403AHigh charge, low leakage tantalum powdersFANSTEEL INC·Filed 1984·Granted Oct 1, 1985·54 cites·25 claims
- 3185US4740238APlatelet-containing tantalum powdersFANSTEEL INC·Filed 1987·Granted Apr 26, 1988·59 cites·8 claims
- 3284US4190128ARoof drill bit with hexagonal body portionFANSTEEL INC·Filed 1978·Granted Feb 26, 1980·52 cites·5 claims
- 3384US4189265APositive chip control insertFANSTEEL INC·Filed 1978·Granted Feb 19, 1980·39 cites·6 claims
- 3484US4124670AMethod of producing a composite high strength to weight structure having a shell and weight controlled cellular coreFANSTEEL INC·Filed 1976·Granted Nov 7, 1978·46 cites·13 claims
- 3583US4678238ACoolant sleeve for mining toolsFANSTEEL INC·Filed 1986·Granted Jul 7, 1987·52 cites·2 claims
- 3683US4212461AComposite high strength to weight structure having shell and weight controlled coreFANSTEEL INC·Filed 1978·Granted Jul 15, 1980·51 cites·16 claims
- 3783US4128963AMethod for preparing a composite high strength to weight structure with fray resistanceFANSTEEL INC·Filed 1977·Granted Dec 12, 1978·38 cites·12 claims
- 3881US4140172ALiners and tube supports for industrial and chemical process equipmentFANSTEEL INC·Filed 1976·Granted Feb 20, 1979·47 cites·23 claims
- 3981US4117201ACorrosion and erosion resistant lined equipmentFANSTEEL INC·Filed 1976·Granted Sep 26, 1978·46 cites·12 claims
- 4080US4575156AMining block and bitFANSTEEL INC·Filed 1984·Granted Mar 11, 1986·45 cites·1 claims
- 4180US4314863AStainless steel castingsFANSTEEL INC·Filed 1979·Granted Feb 9, 1982·34 cites·17 claims
- 4279US4356028AIn situ phosphorus addition to tantalumFANSTEEL INC·Filed 1981·Granted Oct 26, 1982·22 cites·12 claims
- 4378US4165790ARoof drill bitFANSTEEL INC·Filed 1978·Granted Aug 28, 1979·41 cites·2 claims
- 4477US4190125ADrill bit and steel combination for improved fluid flowFANSTEEL INC·Filed 1977·Granted Feb 26, 1980·46 cites·4 claims
- 4574US4228705ATool holding deviceFANSTEEL INC·Filed 1979·Granted Oct 21, 1980·28 cites·12 claims
- 4672US4859257AFine grained embrittlement resistant tantalum wireFANSTEEL INC·Filed 1988·Granted Aug 22, 1989·25 cites·18 claims
- 4772US4129634AMethod for preparing a composite high strength to weight structure having shell and sleeved coreFANSTEEL INC·Filed 1977·Granted Dec 12, 1978·30 cites·11 claims
- 4871US4214846AHeavy duty insertFANSTEEL INC·Filed 1978·Granted Jul 29, 1980·20 cites·18 claims
- 4971US4030849ALined equipment and method of fabricationFANSTEEL INC·Filed 1976·Granted Jun 21, 1977·31 cites·11 claims
- 5070US4032243AJoint fabrication and method for forming the sameFANSTEEL INC·Filed 1976·Granted Jun 28, 1977·20 cites·21 claims
Showing the top 50 of 77 patent records by PatentIndex Score.
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