Inventor · disambiguated record
Carl W. Keith
Also filed as: KEITH CARL W
23 granted patents·1,936 citations·filing 1989–2006
98Inventor score
Top patents by PatentIndex Score
23 records- 0197US5607024AStability enhanced drill bit and cutting structure having zones of varying wear resistanceSMITH INTERNATIONAL·Filed 1995·Granted Mar 4, 1997·271 cites·36 claims
- 0296US5549171ADrill bit with performance-improving cutting structureSMITH INTERNATIONAL·Filed 1994·Granted Aug 27, 1996·214 cites·43 claims
- 0391US5090492ADrill bit with vibration stabilizersDRESSER IND·Filed 1991·Granted Feb 25, 1992·138 cites·9 claims
- 0489US5582261ADrill bit having enhanced cutting structure and stabilizing featuresSMITH INTERNATIONAL·Filed 1994·Granted Dec 10, 1996·115 cites·44 claims
- 0588US6164394ADrill bit with rows of cutters mounted to present a serrated cutting edgeSMITH INTERNATIONAL·Filed 1996·Granted Dec 26, 2000·114 cites·30 claims
- 0688US5551522ADrill bit having stability enhancing cutting structureSMITH INTERNATIONAL·Filed 1994·Granted Sep 3, 1996·109 cites·22 claims
- 0787US5937958ADrill bits with predictable walk tendenciesSMITH INTERNATIONAL·Filed 1997·Granted Aug 17, 1999·115 cites·33 claims
- 0887US5906246APDC cutter element having improved substrate configurationSMITH INTERNATIONAL·Filed 1996·Granted May 25, 1999·57 cites·22 claims
- 0987US5265685ADrill bit with improved insert cutter patternDRESSER IND·Filed 1991·Granted Nov 30, 1993·94 cites·18 claims
- 1085US6564886B1Drill bit with rows of cutters mounted to present a serrated cutting edgeSMITH INTERNATIONAL·Filed 2000·Granted May 20, 2003·63 cites·14 claims
- 1184US5099929AUnbalanced PDC drill bit with right hand walk tendencies, and method of drilling right hand bore holesDRESSER IND·Filed 1990·Granted Mar 31, 1992·92 cites·37 claims
- 1283US6568492B2Drag-type casing mill/drill bitVAREL INTERNATIONAL INC·Filed 2001·Granted May 27, 2003·70 cites·29 claims
- 1382US5238075ADrill bit with improved cutter sizing patternDRESSER IND·Filed 1992·Granted Aug 24, 1993·85 cites·22 claims
- 1481US7726415B1Fixed cutter drill bitOTS INTERNATIONAL INC·Filed 2006·Granted Jun 1, 2010·39 cites·9 claims
- 1577US5607025ADrill bit and cutting structure having enhanced placement and sizing of cutters for improved bit stabilizationSMITH INTERNATIONAL·Filed 1995·Granted Mar 4, 1997·80 cites·24 claims
- 1676US6904983B2Low-contact area cutting elementVAREL INTERNATIONAL LTD·Filed 2003·Granted Jun 14, 2005·48 cites·20 claims
- 1766US5592996ADrill bit having improved cutting structure with varying diamond densitySMITH INTERNATIONAL·Filed 1994·Granted Jan 14, 1997·42 cites·48 claims
- 1865US5346025ADrill bit with improved insert cutter pattern and method of drillingDRESSER IND·Filed 1993·Granted Sep 13, 1994·36 cites·4 claims
- 1964US6926099B2Drill out bi-center bit and method for using sameVAREL INTERNATIONAL L P·Filed 2003·Granted Aug 9, 2005·32 cites·31 claims
- 2064US6148937APDC cutter element having improved substrate configurationSMITH INTERNATIONAL·Filed 1997·Granted Nov 21, 2000·43 cites·36 claims
- 2162US5737980ABrazing receptacle for improved PCD cutter retentionSMITH INTERNATIONAL·Filed 1996·Granted Apr 14, 1998·42 cites·15 claims
- 2258US4911254APolycrystalline diamond cutting element with mating recessHUGHES TOOL CO·Filed 1989·Granted Mar 27, 1990·26 cites·10 claims
- 2334US6918455B2Drill bit with large insertsSMITH INTERNAT·Filed 1998·Granted Jul 19, 2005·11 cites·62 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →