Alfazazi Dourfaye

Person

Paris, FR

People

Patents Grantslast 30 patents

Information Patent Grant
Drill bit with multiple cutting structures
- Patent number 11,808,087
- Issue date Nov 7, 2023
- Varel Europe S.A.S.
- Alfazazi Dourfaye
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drill bit having a weight on bit reducing effect
- Patent number 11,802,444
- Issue date Oct 31, 2023
- Varel Europe S.A.S.
- Gilles Pelfrene
- E21 - EARTH DRILLING MINING
Information Patent Grant
Fixed cutter drill bit having core receptacle with concave core cutter
- Patent number 10,329,843
- Issue date Jun 25, 2019
- Varel Europe S.A.S.
- Sebastien Reboul
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for reducing intermetallic compounds in matrix bit bondline
- Patent number 9,359,824
- Issue date Jun 7, 2016
- Varel Europe S.A.S.
- Gary M. Thigpen
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method and apparatus for testing superhard material performance
- Patent number 9,297,732
- Issue date Mar 29, 2016
- VAREL EUROPE S.A.S.
- Michael R. Reese
- G01 - MEASURING TESTING
Information Patent Grant
Downhole acoustic emission formation sampling
- Patent number 9,086,348
- Issue date Jul 21, 2015
- Varel Europe S.A.S.
- Gary M. Thigpen
- G01 - MEASURING TESTING
Information Patent Grant
Process for the production of a thermally stable polycrystalline di...
- Patent number 8,858,871
- Issue date Oct 14, 2014
- Varel International Ind., L.P.
- Alfazazi Dourfaye
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Backfilled polycrystalline diamond cutter with high thermal conduct...
- Patent number 8,662,209
- Issue date Mar 4, 2014
- Varel International, Ind., L.P.
- Alfazazi Dourfaye
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for the production of an element comprising at least one bl...
- Patent number 8,647,562
- Issue date Feb 11, 2014
- Varel International Ind., L.P.
- Alfazazi Dourfaye
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Sectorial force balancing of drill bits
- Patent number 8,631,883
- Issue date Jan 21, 2014
- Varel International Ind., L.P.
- Alfazazi Dourfaye
- E21 - EARTH DRILLING MINING
Information Patent Grant
Process for manufacturing a part comprising a block of dense materi...
- Patent number 8,602,131
- Issue date Dec 10, 2013
- Varel International, Ind., L.P.
- Christophe Colin
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Synthetic materials for PDC cutter testing or for testing other sup...
- Patent number 8,434,346
- Issue date May 7, 2013
- Varel Europe S.A.S.
- Michael R. Reese
- G01 - MEASURING TESTING
Information Patent Grant
Synthetic materials for PDC cutter testing or for testing other sup...
- Patent number 8,434,348
- Issue date May 7, 2013
- Varel Europe S.A.S.
- Michael R. Reese
- G01 - MEASURING TESTING
Information Patent Grant
Synthetic materials for PDC cutter testing or for testing other sup...
- Patent number 8,434,347
- Issue date May 7, 2013
- Varel Europe S.A.S.
- Michael R. Reese
- G01 - MEASURING TESTING
Information Patent Grant
Polycrystalline diamond cutter with high thermal conductivity
- Patent number 8,365,846
- Issue date Feb 5, 2013
- Varel International, Ind., L.P.
- Alfazazi Dourfaye
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Impregnated rotary bit
- Patent number 8,210,286
- Issue date Jul 3, 2012
- Varel International, Ind., L.P.
- Alfazazi Dourfaye
- E21 - EARTH DRILLING MINING
Information Patent Grant
Impregnated rotary bit
- Patent number 8,196,683
- Issue date Jun 12, 2012
- Varel International, Ind., L.P.
- Alfazazi Dourfaye
- E21 - EARTH DRILLING MINING
Information Patent Grant
Auto adaptable cutting structure
- Patent number 8,191,656
- Issue date Jun 5, 2012
- Varel International, Ind., L.P.
- Alfazazi Dourfaye
- E21 - EARTH DRILLING MINING
Information Patent Grant
Impregnated rotary bit
- Patent number 8,118,119
- Issue date Feb 21, 2012
- Varel International Ind., L.P.
- Alfazazi Dourfaye
- E21 - EARTH DRILLING MINING
Information Patent Grant
Spiral wave bladed drag bit
- Patent number 6,834,733
- Issue date Dec 28, 2004
- Varel International, Ltd.
- Zakaria Maouche
- E21 - EARTH DRILLING MINING
Information Patent Grant
Superabrasive cutting element
- Patent number 6,488,106
- Issue date Dec 3, 2002
- Varel International, Inc.
- Alfazazi Dourfaye
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DRILL BIT WITH MULTIPLE CUTTING STRUCTURES
- Publication number 20220259926
- Publication date Aug 18, 2022
- Varel Europe S.A.S.
- ALFAZAZI DOURFAYE
- E21 - EARTH DRILLING MINING
Information Patent Application
DRILL BIT HAVING A WEIGHT ON BIT REDUCING EFFECT
- Publication number 20220220809
- Publication date Jul 14, 2022
- Varel Europe S.A.S.
- GILLES PELFRENE
- E21 - EARTH DRILLING MINING
Information Patent Application
FIXED CUTTER DRILL BIT HAVING CORE RECEPTACLE WITH CONCAVE CORE CUTTER
- Publication number 20170335630
- Publication date Nov 23, 2017
- SAME AS APPLICANT INFORMATION
- Sebastien Reboul
- E21 - EARTH DRILLING MINING
Information Patent Application
METHOD OF REDUCING INTERMETALLIC COMPOUNDS IN MATRIX BIT BONDLINE B...
- Publication number 20170173717
- Publication date Jun 22, 2017
- Varel Europe S.A.S.
- Olivier Ther
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Polycrystalline Diamond Compact Bit Manufacturing
- Publication number 20150089880
- Publication date Apr 2, 2015
- Varel Europe S.A.S.
- Alfazazi Dourfaye
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Method For Reducing Intermetallic Compounds In Matrix Bit Bondline
- Publication number 20140131115
- Publication date May 15, 2014
- VAREL INTERNATIONAL IND., L.P.
- Gary M. Thigpen
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
VARIABLE FREQUENCY IMPACT TEST
- Publication number 20130239652
- Publication date Sep 19, 2013
- Varel Europe S.A.S.
- Gilles Pelfrene
- G01 - MEASURING TESTING
Information Patent Application
Downhole Acoustic Emission Formation Sampling
- Publication number 20110286304
- Publication date Nov 24, 2011
- Varel Europe S.A.S.
- Gary M. Thigpen
- E21 - EARTH DRILLING MINING
Information Patent Application
IMPREGNATED ROTARY BIT
- Publication number 20110278075
- Publication date Nov 17, 2011
- Varel International, Ind., L.P.
- Alfazazi Dourfaye
- E21 - EARTH DRILLING MINING
Information Patent Application
IMPREGNATED ROTARY BIT
- Publication number 20110203854
- Publication date Aug 25, 2011
- Varel International, Ind., L.P.
- Alfazazi Dourfaye
- E21 - EARTH DRILLING MINING
Information Patent Application
PROCESS FOR MANUFACTURING A PART COMPRISING A BLOCK OF DENSE MATERI...
- Publication number 20110174550
- Publication date Jul 21, 2011
- Varel International, Ind., L.P.
- Christophe Colin
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Method and Apparatus for Testing Superhard Material Performance
- Publication number 20110148021
- Publication date Jun 23, 2011
- Varel Europe S.A.S.
- Michael R. Reese
- G01 - MEASURING TESTING
Information Patent Application
Synthetic Materials for PDC Cutter Testing or for Testing Other Sup...
- Publication number 20110146372
- Publication date Jun 23, 2011
- Varel Europe S.A.S.
- Michael R. Reese
- G01 - MEASURING TESTING
Information Patent Application
Synthetic Materials for PDC Cutter Testing or for Testing Other Sup...
- Publication number 20110146373
- Publication date Jun 23, 2011
- Varel Europe S.A.S.
- Michael R. Reese
- G01 - MEASURING TESTING
Information Patent Application
Synthetic Materials for PDC Cutter Testing or for Testing Other Sup...
- Publication number 20110146374
- Publication date Jun 23, 2011
- Michael R. Reese
- G01 - MEASURING TESTING
Information Patent Application
AUTO ADAPTABLE CUTTING STRUCTURE
- Publication number 20100243334
- Publication date Sep 30, 2010
- Varel International, Ind., L.P.
- Alfazazi Dourfaye
- E21 - EARTH DRILLING MINING
Information Patent Application
POLYCRYSTALLINE DIAMOND CUTTER WITH HIGH THERMAL CONDUCTIVITY
- Publication number 20100243335
- Publication date Sep 30, 2010
- Varel International, Ind., L.P.
- Alfazazi Dourfaye
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
BACKFILLED POLYCRYSTALLINE DIAMOND CUTTER WITH HIGH THERMAL CONDUCT...
- Publication number 20100243336
- Publication date Sep 30, 2010
- Varel International, Ind., L.P.
- Alfazazi Dourfaye
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
SECTORIAL FORCE BALANCING OF DRILL BITS
- Publication number 20090223721
- Publication date Sep 10, 2009
- Varel International Ind., L.P.
- Alfazazi Dourfaye
- E21 - EARTH DRILLING MINING
Information Patent Application
IMPREGNATED ROTARY BIT
- Publication number 20090145668
- Publication date Jun 11, 2009
- Varel International, Ind., L.P.
- Alfazazi Dourfaye
- E21 - EARTH DRILLING MINING
Information Patent Application
PROCESS FOR THE PRODUCTION OF A THERMALLY STABLE POLYCRYSTALLINE DI...
- Publication number 20090032169
- Publication date Feb 5, 2009
- Varel International, Ind., L.P.
- Alfazazi Dourfaye
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
AUTO ADAPTABLE CUTTING STRUCTURE
- Publication number 20080264696
- Publication date Oct 30, 2008
- Varel International, Ind., L.P.
- Alfazazi Dourfaye
- E21 - EARTH DRILLING MINING
Information Patent Application
PROCESS FOR THE PRODUCTION OF AN ELEMENT COMPRISING AT LEAST ONE BL...
- Publication number 20080240879
- Publication date Oct 2, 2008
- Varel International, Ind., L.P.
- Alfazazi Dourfaye
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
PDC cutter for high compressive strength and highly abrasive format...
- Publication number 20070235230
- Publication date Oct 11, 2007
- Bruno Cuillier
- E21 - EARTH DRILLING MINING
Information Patent Application
Method and fabricating tools for earth boring
- Publication number 20030094730
- Publication date May 22, 2003
- Varel International, Inc.
- Alfazazi Dourfaye
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Alfazazi Dourfaye

Person

Patents Grantslast 30 patents

Drill bit with multiple cutting structures

Drill bit having a weight on bit reducing effect

Fixed cutter drill bit having core receptacle with concave core cutter

Method for reducing intermetallic compounds in matrix bit bondline

Method and apparatus for testing superhard material performance

Downhole acoustic emission formation sampling

Process for the production of a thermally stable polycrystalline di...

Backfilled polycrystalline diamond cutter with high thermal conduct...

Process for the production of an element comprising at least one bl...

Sectorial force balancing of drill bits

Process for manufacturing a part comprising a block of dense materi...

Synthetic materials for PDC cutter testing or for testing other sup...

Synthetic materials for PDC cutter testing or for testing other sup...

Synthetic materials for PDC cutter testing or for testing other sup...

Polycrystalline diamond cutter with high thermal conductivity

Impregnated rotary bit

Impregnated rotary bit

Auto adaptable cutting structure

Impregnated rotary bit

Spiral wave bladed drag bit

Superabrasive cutting element

Patents Applicationslast 30 patents

DRILL BIT WITH MULTIPLE CUTTING STRUCTURES

DRILL BIT HAVING A WEIGHT ON BIT REDUCING EFFECT

FIXED CUTTER DRILL BIT HAVING CORE RECEPTACLE WITH CONCAVE CORE CUTTER

METHOD OF REDUCING INTERMETALLIC COMPOUNDS IN MATRIX BIT BONDLINE B...

Polycrystalline Diamond Compact Bit Manufacturing

Method For Reducing Intermetallic Compounds In Matrix Bit Bondline

VARIABLE FREQUENCY IMPACT TEST

Downhole Acoustic Emission Formation Sampling

IMPREGNATED ROTARY BIT

IMPREGNATED ROTARY BIT

PROCESS FOR MANUFACTURING A PART COMPRISING A BLOCK OF DENSE MATERI...

Method and Apparatus for Testing Superhard Material Performance

Synthetic Materials for PDC Cutter Testing or for Testing Other Sup...

Synthetic Materials for PDC Cutter Testing or for Testing Other Sup...

Synthetic Materials for PDC Cutter Testing or for Testing Other Sup...

AUTO ADAPTABLE CUTTING STRUCTURE

POLYCRYSTALLINE DIAMOND CUTTER WITH HIGH THERMAL CONDUCTIVITY

BACKFILLED POLYCRYSTALLINE DIAMOND CUTTER WITH HIGH THERMAL CONDUCT...

SECTORIAL FORCE BALANCING OF DRILL BITS

IMPREGNATED ROTARY BIT

PROCESS FOR THE PRODUCTION OF A THERMALLY STABLE POLYCRYSTALLINE DI...

AUTO ADAPTABLE CUTTING STRUCTURE

PROCESS FOR THE PRODUCTION OF AN ELEMENT COMPRISING AT LEAST ONE BL...

PDC cutter for high compressive strength and highly abrasive format...

Method and fabricating tools for earth boring