Inventor · disambiguated record
Alfazazi Dourfaye
Also filed as: DOURFAYE ALFAZAZI
21 granted patents·6 pending applications·241 citations·filing 2001–2020
94Inventor score
Files withDOURFAYE ALFAZAZI9REESE MICHAEL R4VAREL EUROPE S A S4VAREL INT IND LP2VAREL INTERNATIONAL INC2
Top patents by PatentIndex Score
27 records- 0196US8365846B2Polycrystalline diamond cutter with high thermal conductivityVAREL INT IND LP·Filed 2010·Granted Feb 5, 2013·35 cites·34 claims
- 0295US8191656B2Auto adaptable cutting structureDOURFAYE ALFAZAZI·Filed 2010·Granted Jun 5, 2012·43 cites·42 claims
- 0386US8662209B2Backfilled polycrystalline diamond cutter with high thermal conductivityDOURFAYE ALFAZAZI·Filed 2010·Granted Mar 4, 2014·6 cites·27 claims
- 0483US6488106B1Superabrasive cutting elementVAREL INTERNATIONAL INC·Filed 2001·Granted Dec 3, 2002·71 cites·20 claims
- 0579US9297732B2Method and apparatus for testing superhard material performanceREESE MICHAEL R·Filed 2010·Granted Mar 29, 2016·2 cites·12 claims
- 0679US8196683B2Impregnated rotary bitDOURFAYE ALFAZAZI·Filed 2011·Granted Jun 12, 2012·5 cites·12 claims
- 0778US6834733B1Spiral wave bladed drag bitVAREL INTERNATIONAL LTD·Filed 2002·Granted Dec 28, 2004·61 cites·45 claims
- 0875US10329843B2Fixed cutter drill bit having core receptacle with concave core cutterVAREL EUROPE S A S·Filed 2017·Granted Jun 25, 2019·3 cites·15 claims
- 0971US8434346B2Synthetic materials for PDC cutter testing or for testing other superhard materialsREESE MICHAEL R·Filed 2010·Granted May 7, 2013·2 cites·34 claims
- 1070US8602131B2Process for manufacturing a part comprising a block of dense material constituted of hard particles and of binder phase having a gradient of properties, and resulting partCOLIN CHRISTOPHE·Filed 2009·Granted Dec 10, 2013·3 cites·22 claims
- 1166US8647562B2Process for the production of an element comprising at least one block of dense material constituted by hard particles dispersed in a binder phase: application to cutting or drilling toolsDOURFAYE ALFAZAZI·Filed 2008·Granted Feb 11, 2014·1 cites·45 claims
- 1265US8434348B2Synthetic materials for PDC cutter testing or for testing other superhard materialsREESE MICHAEL R·Filed 2010·Granted May 7, 2013·1 cites·28 claims
- 1358US9359824B2Method for reducing intermetallic compounds in matrix bit bondlineVAREL EUROPE SAS·Filed 2014·Granted Jun 7, 2016·2 cites·30 claims
- 1453US9086348B2Downhole acoustic emission formation samplingTHIGPEN GARY M·Filed 2011·Granted Jul 21, 2015·1 cites·17 claims
- 1553US8858871B2Process for the production of a thermally stable polycrystalline diamond compactDOURFAYE ALFAZAZI·Filed 2008·Granted Oct 14, 2014·0 cites·36 claims
- 1652US8631883B2Sectorial force balancing of drill bitsDOURFAYE ALFAZAZI·Filed 2009·Granted Jan 21, 2014·3 cites·12 claims
- 1752US8118119B2Impregnated rotary bitDOURFAYE ALFAZAZI·Filed 2008·Granted Feb 21, 2012·2 cites·22 claims
- 1850US8434347B2Synthetic materials for PDC cutter testing or for testing other superhard materialsREESE MICHAEL R·Filed 2010·Granted May 7, 2013·0 cites·30 claims
- 1947US8210286B2Impregnated rotary bitDOURFAYE ALFAZAZI·Filed 2011·Granted Jul 3, 2012·0 cites·18 claims
- 2046US11808087B2Drill bit with multiple cutting structuresVAREL EUROPE S A S·Filed 2020·Granted Nov 7, 2023·0 cites·15 claims
- 2142US2013239652A1Variable frequency impact testPELFRENE GILLES·Filed 2013·Application pending·0 cites
- 2241US2008264696A1Auto adaptable cutting structureVAREL INT IND LP·Filed 2008·Application pending·0 cites
- 2340US2017173717A1Method of reducing intermetallic compounds in matrix bit bondline by reduced temperature processVAREL EUROPE S A S·Filed 2016·Application pending·0 cites
- 2439US11802444B2Drill bit having a weight on bit reducing effectVAREL EUROPE S A S·Filed 2020·Granted Oct 31, 2023·0 cites·19 claims
- 2534US2007235230A1PDC cutter for high compressive strength and highly abrasive formationsCUILLIER BRUNO·Filed 2006·Application pending·0 cites
- 2634US2015089880A1Polycrystalline Diamond Compact Bit ManufacturingDOURFAYE ALFAZAZI·Filed 2013·Application pending·0 cites
- 2726US2003094730A1Method and fabricating tools for earth boringVAREL INTERNATIONAL INC·Filed 2002·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →