Inventor · disambiguated record
Stephen P. Stiffler
Also filed as: STIFFLER STEPHEN · STIFFLER STEPHEN P
22 granted patents·1,079 citations·filing 1987–2010
97Inventor score
Top patents by PatentIndex Score
22 records- 0198US6824225B2Embossed washerKENNAMETAL INC·Filed 2002·Granted Nov 30, 2004·221 cites·35 claims
- 0298US5141289ACemented carbide tipKENNAMETAL INC·Filed 1991·Granted Aug 25, 1992·194 cites·6 claims
- 0398US4940288AEarth engaging cutter bitKENNAMETAL INC·Filed 1989·Granted Jul 10, 1990·161 cites·28 claims
- 0494US7475949B2Edge cutter assembly for use with a rotatable drumKENNAMETAL INC·Filed 2006·Granted Jan 13, 2009·34 cites·20 claims
- 0590US4981328ARotatable tool having a carbide insert with bumpsKENNAMETAL INC·Filed 1989·Granted Jan 1, 1991·71 cites·29 claims
- 0689US6428110B1Cutting tool retainerKENNAMETAL INC·Filed 2000·Granted Aug 6, 2002·40 cites·36 claims
- 0786US6764140B2Drum mounting plate for cutting tool holder blockKENNAMETAL INC·Filed 2002·Granted Jul 20, 2004·49 cites·29 claims
- 0880US4941711ACemented carbide tipKENNAMETAL INC·Filed 1989·Granted Jul 17, 1990·44 cites·16 claims
- 0978US7547074B2Overlapping pedestals for supporting a block secured to a rotating drumKENNAMETAL INC·Filed 2006·Granted Jun 16, 2009·8 cites·21 claims
- 1077US8523290B2Rotatable cutting tool-tool holder-base assemblyHELSEL ERIC P·Filed 2010·Granted Sep 3, 2013·5 cites·5 claims
- 1176US5219209ARotatable cutting bit insertKENNAMETAL INC·Filed 1992·Granted Jun 15, 1993·44 cites·17 claims
- 1273US8523289B2Retention assembly for cutting bitHELSEL ERIC P·Filed 2010·Granted Sep 3, 2013·4 cites·3 claims
- 1372US4911504ACutter bit and tipKENNAMETAL INC·Filed 1988·Granted Mar 27, 1990·33 cites·19 claims
- 1468US7883154B2Cutting tool with water injection to the cutting bit shankKENNAMETAL INC·Filed 2008·Granted Feb 8, 2011·5 cites·13 claims
- 1568US5131725ARotatable cutting tool having an insert with flangesKENNAMETAL INC·Filed 1990·Granted Jul 21, 1992·33 cites·30 claims
- 1665US4911503AEarth engaging cutter bitKENNAMETAL INC·Filed 1988·Granted Mar 27, 1990·26 cites·28 claims
- 1757US7883153B2Road milling drum having an adjustable widthKENNAMETAL INC·Filed 2007·Granted Feb 8, 2011·2 cites·8 claims
- 1857US6070945ACutting tool retainerKENNAMETAL INC·Filed 1998·Granted Jun 6, 2000·24 cites·23 claims
- 1952US4817743AButterfly-type shim having semi-opened bottom and double sandwich braze joint produced therewithKENNAMETAL INC·Filed 1987·Granted Apr 4, 1989·23 cites·2 claims
- 2050US5067262ADigging toothKENNAMETAL INC·Filed 1990·Granted Nov 26, 1991·16 cites·11 claims
- 2148US5143163ADigging toothKENNAMETAL INC·Filed 1991·Granted Sep 1, 1992·24 cites·26 claims
- 2248US4917196AExcavating tooth for an earth augerKENNAMETAL INC·Filed 1989·Granted Apr 17, 1990·18 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →