Assignee
HEAD PHILIP
17 patents
Top patents by PatentIndex Score
US7378769B2May 27, 2008
Electric motors for powering downhole tools
HEAD PHILIP30 citations93
US7134512B2Nov 14, 2006
Method of downhole drilling and apparatus therefor
HEAD PHILIP19 citations93
US7049506B2May 23, 2006
Conductor system
HEAD PHILIP23 citations93
US9054615B2Jun 9, 2015
Method and apparatus for control of a synchronous permanent magnet motor, particularly over a long cable in a well
HEAD PHILIP15 citations84
US8985226B2Mar 24, 2015
Electric submersible pump, tubing and method for borehole production
HEAD PHILIP10 citations84
US8950476B2Feb 10, 2015
Coiled tubing deployed ESP
HEAD PHILIP19 citations84
US8746354B2Jun 10, 2014
Wet connection system for downhole equipment
HEAD PHILIP12 citations84
US8485837B2Jul 16, 2013
Electrical wet connector in downhole environment
HEAD PHILIP13 citations84
US8103135B2Jan 24, 2012
Well bore sensing
HEAD PHILIP11 citations84
US7541543B2Jun 2, 2009
Cables
HEAD PHILIP10 citations84
US7350589B2Apr 1, 2008
Telemetering system
HEAD PHILIP9 citations84
US8931552B2Jan 13, 2015
Cables for downhole use
HEAD PHILIP4 citations73
US9157295B2Oct 13, 2015
Control of fluid flow in oil wells
HEAD PHILIP2 citations63
US8210253B2Jul 3, 2012
Oil well pump
HEAD PHILIP4 citations63
US8813839B2Aug 26, 2014
Method of deploying and powering an electrically driven device in a well
HEAD PHILIP1 citations52
US7836977B2Nov 23, 2010
Method of drilling a well at or under balance using a electrical submersible pump
HEAD PHILIP1 citations52
US8316928B2Nov 27, 2012
Drive means
HEAD PHILIP0 citations42