Inventor · disambiguated record
Steven W. Drews
Also filed as: DREWS STEVEN W · DREWS STEVEN WAYNE
11 granted patents·1 pending application·133 citations·filing 1993–2018
89Inventor score
Files withREESE MICHAEL R3KING WILLIAM W2DREWS STEVEN W1IND L P VAREL INTERNAT1SLIM DRIL INTERNATIONAL INC1
Top patents by PatentIndex Score
12 records- 0193US8327944B2Whipstock attachment to a fixed cutter drilling or milling bitKING WILLIAM W·Filed 2010·Granted Dec 11, 2012·24 cites·30 claims
- 0286US10550644B2Drill bit having shaped leading cutter and impregnated backup cutterVAREL INT IND L L C·Filed 2018·Granted Feb 4, 2020·5 cites·13 claims
- 0384US8561729B2Casing bit and casing reamer designsKING WILLIAM W·Filed 2010·Granted Oct 22, 2013·9 cites·48 claims
- 0477US8061408B2Casting method for matrix drill bits and reamersREESE MICHAEL R·Filed 2009·Granted Nov 22, 2011·2 cites·20 claims
- 0575US8079402B2Casting method for matrix drill bits and reamersREESE MICHAEL R·Filed 2011·Granted Dec 20, 2011·1 cites·19 claims
- 0672US5396966ASteering sub for flexible drillingSLIMDRIL INTERNATIONAL INC·Filed 1994·Granted Mar 14, 1995·59 cites·28 claims
- 0760US9828810B2Mill-drill cutter and drill bitVAREL INT IND LP·Filed 2015·Granted Nov 28, 2017·1 cites·22 claims
- 0858US8061405B2Casting method for matrix drill bits and reamersREESE MICHAEL R·Filed 2011·Granted Nov 22, 2011·0 cites·29 claims
- 0951US8327956B2Multi-set PDC drill bit and methodDREWS STEVEN W·Filed 2009·Granted Dec 11, 2012·5 cites·15 claims
- 1045US5368109AApparatus for arcuate drillingSLIM DRIL INTERNATIONAL INC·Filed 1993·Granted Nov 29, 1994·27 cites·24 claims
- 1138US9291001B2Machined high angle nozzle sockets for steel body bitsIND L P VAREL INTERNAT·Filed 2013·Granted Mar 22, 2016·0 cites·19 claims
- 1237US2011209922A1Casing end toolVAREL INTERNAT·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →