Inventor · disambiguated record
Djurre Hans Zijsling
Also filed as: ZIJSLING DJURRE H · ZIJSLING DJURRE HANS
51 granted patents·10 pending applications·778 citations·filing 1985–2018
98Inventor score
Files withSHELL OIL CO45WUBBEN ANTONIUS LEONARDUS MARIA4DEN BOER JOHANNIS JOSEPHUS2DI CRESCENZO DANIELE2HESSELS JOHANNES LOUIS LEONARDUS1
Top patents by PatentIndex Score
61 records- 0195US4792001ARotary drill bitSHELL OIL CO·Filed 1987·Granted Dec 20, 1988·144 cites·17 claims
- 0290US10450846B2Hybrid push and pull method and system for expanding well tubularsSHELL OIL CO·Filed 2017·Granted Oct 22, 2019·7 cites·19 claims
- 0388US7774917B2Forge welding tubularsTUBEFUSE APPLIC B V·Filed 2006·Granted Aug 17, 2010·23 cites·35 claims
- 0487US9677179B2Pipe connector and methodSHELL OIL CO·Filed 2013·Granted Jun 13, 2017·3 cites·21 claims
- 0587US7389822B2Expander system for incremental expansion of a tubular elementSHELL OIL CO·Filed 2004·Granted Jun 24, 2008·20 cites·16 claims
- 0684US4926950AMethod for monitoring the wear of a rotary type drill bitSHELL OIL CO·Filed 1988·Granted May 22, 1990·65 cites·2 claims
- 0781US7474221B2Marking of pipe jointsSHELL OIL CO·Filed 2003·Granted Jan 6, 2009·26 cites·15 claims
- 0881US7252162B2Method and device for injecting a fluid into a formationSHELL OIL CO·Filed 2002·Granted Aug 7, 2007·82 cites·17 claims
- 0980US7181821B2Joining expandable tubularsSHELL OIL CO·Filed 2003·Granted Feb 27, 2007·26 cites·29 claims
- 1078US7681636B2Pipe expanderSHELL OIL CO·Filed 2006·Granted Mar 23, 2010·20 cites·10 claims
- 1176US9617800B2Connector assemblySHELL OIL CO·Filed 2013·Granted Apr 11, 2017·4 cites·21 claims
- 1275US7282663B2Forge welding processSHELL OIL CO·Filed 2003·Granted Oct 16, 2007·21 cites·20 claims
- 1374US9004184B2Method and wellbore systemDI CRESCENZO DANIELE·Filed 2012·Granted Apr 14, 2015·3 cites·15 claims
- 1472US6176313B1Method and tool for fracturing an underground formationSHELL OIL CO·Filed 1999·Granted Jan 23, 2001·64 cites·15 claims
- 1569US8997857B2System and method for anchoring an expandable tubular to a borehole wallWUBBEN ANTONIUS LEONARDUS MARIA·Filed 2010·Granted Apr 7, 2015·4 cites·12 claims
- 1665US4607711ARotary drill bit with cutting elements having a thin abrasive front layerSHELL OIL CO·Filed 1985·Granted Aug 26, 1986·34 cites·2 claims
- 1763US9366117B2Method and system for lining a section of a wellbore with an expandable tubular elementVAN RIET EGBERT JAN·Filed 2010·Granted Jun 14, 2016·4 cites·13 claims
- 1862US7104344B2Percussion drilling headSHELL OIL CO·Filed 2002·Granted Sep 12, 2006·24 cites·18 claims
- 1962US4854399ATubular element for use in a rotary drilling assemblySHELL OIL CO·Filed 1988·Granted Aug 8, 1989·29 cites·19 claims
- 2061US8522866B2System and method for anchoring an expandable tubular to a borehole wallWUBBEN ANTONIUS LEONARDUS MARIA·Filed 2010·Granted Sep 3, 2013·2 cites·12 claims
- 2159US5806611ADevice for controlling weight on bit of a drilling assemblySHELL OIL CO·Filed 1996·Granted Sep 15, 1998·39 cites·13 claims
- 2258US10000990B2System and method for creating a sealing tubular connection in a wellboreSHELL OIL CO·Filed 2015·Granted Jun 19, 2018·1 cites·20 claims
- 2358US9422794B2System for lining a wellboreDI CRESCENZO DANIELE·Filed 2012·Granted Aug 23, 2016·2 cites·6 claims
- 2456US7360604B2Expander system for stepwise expansion of a tubular elementSHELL OIL CO·Filed 2004·Granted Apr 22, 2008·18 cites·19 claims
- 2555US8997856B2System and method for anchoring an expandable tubular to a borehole wallWUBBEN ANTONIUS LEONARDUS MARIA·Filed 2010·Granted Apr 7, 2015·1 cites·24 claims
- 2655US6371211B1Method of creating a weld in a wellboreSHELL OIL CO·Filed 2000·Granted Apr 16, 2002·5 cites·14 claims
- 2754US10577900B2Expansion assembly, top anchor and method for expanding a tubular in a wellboreSHELL OIL CO·Filed 2018·Granted Mar 3, 2020·0 cites·17 claims
- 2854US8973654B2System and method for anchoring an expandable tubular to a borehole wallWUBBEN ANTONIUS LEONARDUS MARIA·Filed 2010·Granted Mar 10, 2015·1 cites·17 claims
- 2954US4844180ADownhole drilling motorSHELL OIL CO·Filed 1988·Granted Jul 4, 1989·22 cites·17 claims
- 3054US2008237308A1Forge welding methodDEN BOER JOHANNIS JOSEPHUS·Filed 2008·Application pending·0 cites
- 3153US7464774B2Drill bit and system for drilling a boreholeSHELL OIL CO·Filed 2004·Granted Dec 16, 2008·18 cites·8 claims
- 3253US2011272139A1System for drilling a wellboreVAN DEN BREKEL BERNARDUS JOHANNES HENRICUS·Filed 2008·Application pending·0 cites
- 3351US7467671B2Drill bit with protection memberSHELL OIL CO·Filed 2004·Granted Dec 23, 2008·16 cites·17 claims
- 3449US10648298B2Method of expanding a tubular and expandable tubularSHELL OIL CO·Filed 2016·Granted May 12, 2020·0 cites·14 claims
- 3548US9951588B2Expansion assembly, top anchor and method for expanding a tubular in a wellboreSHELL OIL CO·Filed 2013·Granted Apr 24, 2018·0 cites·17 claims
- 3646US10858915B2Reducing swab pressure generated behind a well liner expansion coneSHELL OIL CO·Filed 2017·Granted Dec 8, 2020·0 cites·14 claims
- 3745US7451811B2Expanding a tubular element to different inner diametersSHELL OIL CO·Filed 2004·Granted Nov 18, 2008·8 cites·12 claims
- 3844US10597961B2Method and system for locking an upper end of an expanded tubular within a host casingSHELL OIL CO·Filed 2017·Granted Mar 24, 2020·0 cites·14 claims
- 3944US6971458B2Drill bitSHELL OIL CO·Filed 2001·Granted Dec 6, 2005·7 cites·6 claims
- 4042US10801285B2Retrievable self-energizing top anchor toolSHELL OIL CO·Filed 2017·Granted Oct 13, 2020·0 cites·15 claims
- 4142US5197554ARotary drill bit for drilling through sticky formationsSHELL INT RESEARCH·Filed 1989·Granted Mar 30, 1993·13 cites·5 claims
- 4241US10570710B2Method and system for sealing a segmented expandable coneSHELL OIL CO·Filed 2016·Granted Feb 25, 2020·0 cites·6 claims
- 4341US10036235B2Assembly and method for expanding a tubular elementSHELL OIL CO·Filed 2015·Granted Jul 31, 2018·0 cites·20 claims
- 4441US8720588B2Method and system for fixing an element in a boreholeSCHILTE PAUL DIRK·Filed 2009·Granted May 13, 2014·1 cites·15 claims
- 4540US6953098B2Hydraulic drill string accumulatorSHELL OIL CO·Filed 2001·Granted Oct 11, 2005·3 cites·11 claims
- 4639US8726985B2Expanding a tubular element in a wellboreHESSELS JOHANNES LOUIS LEONARDUS·Filed 2009·Granted May 20, 2014·1 cites·22 claims
- 4739US7383900B2Drill bit and system for drilling a boreholeSHELL OIL CO·Filed 2004·Granted Jun 10, 2008·1 cites·11 claims
- 4839US2018187525A1Method and system for enhancing the performance of a well tubular expansion assemblySHELL OIL CO·Filed 2016·Application pending·0 cites
- 4938US9822614B2Combined casing system and methodSHELL OIL CO·Filed 2012·Granted Nov 21, 2017·0 cites·22 claims
- 5038US2018195371A1Method and system for surplus expansion of a bell section at a lower end of an expanded tubularSHELL OIL CO·Filed 2016·Application pending·0 cites
Showing the top 50 of 61 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →