Inventor · disambiguated record
Josef Guillaume Christoffel Coenen
Also filed as: COENEN JOSEF GUILLAUME C · COENEN JOSEF GUILLAUME CHRISTO · COENEN JOSEF GUILLAUME CHRISTOFFEL
6 granted patents·2 pending applications·218 citations·filing 1998–2010
86Inventor score
Top patents by PatentIndex Score
8 records- 0185US6305469B1Method of creating a wellboreSHELL OIL CO·Filed 2000·Granted Oct 23, 2001·99 cites·17 claims
- 0283US7318343B2System for detecting gas in a wellbore during drillingSHELL OIL CO·Filed 2003·Granted Jan 15, 2008·26 cites·16 claims
- 0372US6176313B1Method and tool for fracturing an underground formationSHELL OIL CO·Filed 1999·Granted Jan 23, 2001·64 cites·15 claims
- 0462US8665110B2Transmitting electric power into a bore holeCOENEN JOSEF GUILLAUME CHRISTOFFEL·Filed 2010·Granted Mar 4, 2014·4 cites·26 claims
- 0543US7347282B2Steerable soil penetration systemSHELL OIL CO·Filed 2003·Granted Mar 25, 2008·8 cites·21 claims
- 0636US6241029B1Earth formation surveying deviceSHELL RES LTD·Filed 1998·Granted Jun 5, 2001·17 cites·8 claims
- 0728US2006151211A1Transmitting electric power into a bore holeCOENEN JOSEF GUILLAUME C·Filed 2005·Application pending·0 cites
- 0828US2003108393A1System for creating a conduit in a borehole formed in an earth formationFiled 2001·Application pending·0 cites
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