Inventor · disambiguated record
Herbert M. J. Illfelder
Also filed as: ILLFELDER HERBERT M J · ILLFELDER HERBERT MAX JOSEPH
4 granted patents·1 pending application·258 citations·filing 1996–2010
82Inventor score
Top patents by PatentIndex Score
5 records- 0192US8010290B2Method of optimizing a well path during drillingSMITH INTERNATIONAL·Filed 2008·Granted Aug 30, 2011·78 cites·26 claims
- 0289US5867806ASystem and method for performing inversion on LWD resistivity logs with enhanced resolutionHALLIBURTON ENERGY SERV INC·Filed 1996·Granted Feb 2, 1999·126 cites·40 claims
- 0386US7617049B2Distance determination from a magnetically patterned target wellSMITH INTERNATIONAL·Filed 2007·Granted Nov 10, 2009·25 cites·24 claims
- 0466US7080460B2Determining a borehole azimuth from tool face measurementsPATHFINDER ENERGY SEVICES INC·Filed 2004·Granted Jul 25, 2006·29 cites·56 claims
- 0537US2010241410A1Relative and Absolute Error Models for Subterranean WellsSMITH INTERNATIONAL·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →