Inventor · disambiguated record
Douwe Johannes Runia
Also filed as: RUNIA DOUWE JOHANNES
17 granted patents·2 pending applications·585 citations·filing 1997–2014
95Inventor score
Top patents by PatentIndex Score
19 records- 0190US7059410B2Method and system for reducing longitudinal fluid flow around a permeable wellSHELL OIL CO·Filed 2001·Granted Jun 13, 2006·110 cites·6 claims
- 0289US9932811B2Method and system for damping vibrations in a tool string systemSHELL OIL CO·Filed 2014·Granted Apr 3, 2018·9 cites·19 claims
- 0379US7207398B2Steerable rotary drill bit assembly with pilot bitSHELL OIL CO·Filed 2002·Granted Apr 24, 2007·59 cites·18 claims
- 0476US7281592B2Injecting a fluid into a borehole ahead of the bitSHELL OIL CO·Filed 2002·Granted Oct 16, 2007·52 cites·19 claims
- 0573US7134493B2Logging system for use in a wellboreSHELL OIL CO·Filed 2002·Granted Nov 14, 2006·41 cites·18 claims
- 0672US6269891B1Through-drill string conveyed logging systemSHELL OIL CO·Filed 1999·Granted Aug 7, 2001·60 cites·10 claims
- 0770US6799634B2Tracer release method for monitoring fluid flow in a wellSHELL OIL CO·Filed 2001·Granted Oct 5, 2004·47 cites·12 claims
- 0870US6119777ALogging methodSHELL OIL CO·Filed 1997·Granted Sep 19, 2000·58 cites·17 claims
- 0965US7287609B2Drilling a boreholeSHELL OIL CO·Filed 2003·Granted Oct 30, 2007·30 cites·25 claims
- 1063US8439131B2Drill bit assembly and method of performing an operation in a wellboreRUNIA DOUWE JOHANNES·Filed 2008·Granted May 14, 2013·8 cites·8 claims
- 1162US7296639B2Wellstring assemblySHELL OIL CO·Filed 2004·Granted Nov 20, 2007·33 cites·11 claims
- 1259US7140454B2Well drilling bitSHELL OIL CO·Filed 2002·Granted Nov 28, 2006·21 cites·21 claims
- 1358US7188672B2Well string assemblySHELL OIL CO·Filed 2004·Granted Mar 13, 2007·27 cites·24 claims
- 1455US6702041B2Combined logging and drilling systemSHELL OIL CO·Filed 2001·Granted Mar 9, 2004·17 cites·12 claims
- 1549US9074436B2Methods for installing sensors in a boreholeRUNIA DOUWE JOHANNES·Filed 2009·Granted Jul 7, 2015·2 cites·16 claims
- 1646US8668031B2Drill bit and method for inserting, expanding, collapsing, and retrieving drill bitRUNIA DOUWE JOHANNES·Filed 2009·Granted Mar 11, 2014·1 cites·15 claims
- 1737US6181132B1NMR logging assemblySHELL OIL CO·Filed 1999·Granted Jan 30, 2001·10 cites·8 claims
- 1837US2012018219A1Method and steering assembly for drilling a borehole in an earth formationRUNIA DOUWE JOHANNES·Filed 2010·Application pending·0 cites
- 1933US2001035289A1Wellbore logging systemFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →