Steven W. Drews

Person

Cypress, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Drill bit having shaped leading cutter and impregnated backup cutter
- Patent number 10,550,644
- Issue date Feb 4, 2020
- VAREL INTERNATIONAL IND., LLC.
- Steven Wayne Drews
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mill-drill cutter and drill bit
- Patent number 9,828,810
- Issue date Nov 28, 2017
- Varel International Ind., L.P.
- Steven W. Drews
- E21 - EARTH DRILLING MINING
Information Patent Grant
Machined high angle nozzle sockets for steel body bits
- Patent number 9,291,001
- Issue date Mar 22, 2016
- Varel International Ind., L.P.
- William W. King
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Casing bit and casing reamer designs
- Patent number 8,561,729
- Issue date Oct 22, 2013
- Varel International, Ind., L.P.
- William W. King
- E21 - EARTH DRILLING MINING
Information Patent Grant
Whipstock attachment to a fixed cutter drilling or milling bit
- Patent number 8,327,944
- Issue date Dec 11, 2012
- Varel International, Ind., L.P.
- William W. King
- E21 - EARTH DRILLING MINING
Information Patent Grant
Multi-set PDC drill bit and method
- Patent number 8,327,956
- Issue date Dec 11, 2012
- Varel International, Ind., L.P.
- Steven W. Drews
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Casting method for matrix drill bits and reamers
- Patent number 8,079,402
- Issue date Dec 20, 2011
- Varel Europe S.A.S.
- Michael R. Reese
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Casting method for matrix drill bits and reamers
- Patent number 8,061,405
- Issue date Nov 22, 2011
- Varel Europe S.A.S.
- Michael R. Reese
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Casting method for matrix drill bits and reamers
- Patent number 8,061,408
- Issue date Nov 22, 2011
- Varel Europe S.A.S.
- Michael R. Reese
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
DRILL BIT HAVING SHAPED LEADING CUTTER AND IMPREGNATED BACKUP CUTTER
- Publication number 20190063160
- Publication date Feb 28, 2019
- VAREL INTERNATIONAL IND., L.L.C.
- STEVEN WAYNE DREWS
- E21 - EARTH DRILLING MINING
Information Patent Application
MILL-DRILL CUTTER AND DRILL BIT
- Publication number 20150226010
- Publication date Aug 13, 2015
- VAREL INTERNATIONAL IND., L.P.
- Steven W. Drews
- E21 - EARTH DRILLING MINING
Information Patent Application
MACHINED HIGH ANGLE NOZZLE SOCKETS FOR STEEL BODY BITS
- Publication number 20140090901
- Publication date Apr 3, 2014
- VAREL INTERNATIONAL IND., L.P.
- William W. King
- E21 - EARTH DRILLING MINING
Information Patent Application
CASING END TOOL
- Publication number 20110209922
- Publication date Sep 1, 2011
- Varel International
- William W. King
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Casting Method For Matrix Drill Bits And Reamers
- Publication number 20110209845
- Publication date Sep 1, 2011
- Varel Europe S.A.S.
- Michael R. Reese
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Casting Method For Matrix Drill Bits And Reamers
- Publication number 20110121475
- Publication date May 26, 2011
- Varel Europe S.A.S.
- Michael R. Reese
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Casting Method For Matrix Drill Bits And Reamers
- Publication number 20110084420
- Publication date Apr 14, 2011
- Varel Europe S.A.S.
- Michael R. Reese
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
WHIPSTOCK ATTACHMENT TO A FIXED CUTTER DRILLING OR MILLING BIT
- Publication number 20100319997
- Publication date Dec 23, 2010
- Varel International, Ind., L.P.
- William W. King
- E21 - EARTH DRILLING MINING
Information Patent Application
CASING BIT AND CASING REAMER DESIGNS
- Publication number 20100307837
- Publication date Dec 9, 2010
- Varel International, Ind., L.P.
- William W. King
- E21 - EARTH DRILLING MINING
Information Patent Application
MULTI-SET PDC DRILL BIT AND METHOD
- Publication number 20100155151
- Publication date Jun 24, 2010
- Varel International
- Steven W. Drews
- E21 - EARTH DRILLING MINING

Steven W. Drews

Person

Patents Grantslast 30 patents

Drill bit having shaped leading cutter and impregnated backup cutter

Mill-drill cutter and drill bit

Machined high angle nozzle sockets for steel body bits

Casing bit and casing reamer designs

Whipstock attachment to a fixed cutter drilling or milling bit

Multi-set PDC drill bit and method

Casting method for matrix drill bits and reamers

Casting method for matrix drill bits and reamers

Casting method for matrix drill bits and reamers

Patents Applicationslast 30 patents

DRILL BIT HAVING SHAPED LEADING CUTTER AND IMPREGNATED BACKUP CUTTER

MILL-DRILL CUTTER AND DRILL BIT

MACHINED HIGH ANGLE NOZZLE SOCKETS FOR STEEL BODY BITS

CASING END TOOL

Casting Method For Matrix Drill Bits And Reamers

Casting Method For Matrix Drill Bits And Reamers

Casting Method For Matrix Drill Bits And Reamers

WHIPSTOCK ATTACHMENT TO A FIXED CUTTER DRILLING OR MILLING BIT

CASING BIT AND CASING REAMER DESIGNS

MULTI-SET PDC DRILL BIT AND METHOD