Inventor · disambiguated record
Christian Wittrisch
Also filed as: WITTRISCH CHRISTIAN
57 granted patents·1 pending application·2,291 citations·filing 1982–2016
99Inventor score
Files withINST FRANCAIS DU PETROLE53COMMISSARIAT ENERGIE ATOMIQUE1IFP ENERGIES NOW1IFP Energies Nouvelles1INSTITIT FRANCAIS DU PETROLE1
Top patents by PatentIndex Score
58 records- 0197US4775009AProcess and device for installing seismic sensors inside a petroleum production wellINST FRANCAIS DU PETROLE·Filed 1987·Granted Oct 4, 1988·186 cites·14 claims
- 0293US5458209ADevice, system and method for drilling and completing a lateral wellINST FRANCAIS DU PETROLE·Filed 1993·Granted Oct 17, 1995·289 cites·61 claims
- 0390US5217075AMethod and device for carrying out interventions in wells where high temperatures prevailINST FRANCAIS DU PETROLE·Filed 1991·Granted Jun 8, 1993·133 cites·10 claims
- 0488US7114855B2Connection device for optical fiberINST FRANCAIS DU PETROLE·Filed 2004·Granted Oct 3, 2006·35 cites·9 claims
- 0587US5961282AAxial-flow and centrifugal pumping systemINST FRANCAIS DU PETROLE·Filed 1997·Granted Oct 5, 1999·71 cites·7 claims
- 0687US5505259AMeasuring device and method in a hydrocarbon production wellINST FRANCAIS DU PETROLE·Filed 1994·Granted Apr 9, 1996·79 cites·16 claims
- 0785US5353872ASystem, support for carrying out measurings and/or servicings in a wellbore or in a well in the process of being drilled and uses thereofINST FRANCAIS DU PETROLE·Filed 1992·Granted Oct 11, 1994·95 cites·18 claims
- 0885US5305830AMethod and device for carrying out measurings and/or servicings in a wellbore or a well in the process of being drilledINST FRANCAIS DU PETROLE·Filed 1992·Granted Apr 26, 1994·94 cites·17 claims
- 0985US4690214AMethod and a device for carrying out measurements and/or operations in a wellINST FRANCAIS DU PETROLE·Filed 1984·Granted Sep 1, 1987·61 cites·14 claims
- 1085US4457370AMethod and device for effecting, by means of specialized tools, such operations as measurements in highly inclined to the vertical or horizontal well portionsINST FRANCAIS DU PETROLE·Filed 1982·Granted Jul 3, 1984·59 cites·18 claims
- 1184US7100686B2Controlled-pressure drop linerINST FRANCAIS DU PETROLE·Filed 2003·Granted Sep 5, 2006·66 cites·11 claims
- 1284US4945987AMethod and device for taking measurements and/or carrying out interventions in a sharply inclined well section and its application to production of seismic profilesINST FRANCAIS DU PETROLE·Filed 1987·Granted Aug 7, 1990·50 cites·14 claims
- 1383US4570709AMethod and device for effecting, by means of specialized tools, such operations as measurements in highly inclined to the vertical or horizontal well portionsINST FRANCAIS DU PETROLE·Filed 1984·Granted Feb 18, 1986·52 cites·9 claims
- 1481US5447416APumping device comprising two suction inlet holes with application to a subhorizontal drain holeINST FRANCAIS DU PETROLE·Filed 1994·Granted Sep 5, 1995·63 cites·10 claims
- 1579US5259452ASystem for sensing acoustic waves in wells, allowing the mechanical uncoupling of the sensorsINST FRANCAIS DU PETROLE·Filed 1992·Granted Nov 9, 1993·69 cites·14 claims
- 1676US5372207ASeismic prospecting method and device using a drill bit working in a wellINST FRANCAIS DU PETROLE·Filed 1993·Granted Dec 13, 1994·47 cites·27 claims
- 1776US4905774AProcess and device for guiding a drilling tool through geological formationsINST FRANCAIS DU PETROLE·Filed 1987·Granted Mar 6, 1990·48 cites·16 claims
- 1876US4715446ADevice and method for the temporary protection of a working tool or measuring instrument fixed to the end of a drill stringINST FRANCAIS DU PETROLE·Filed 1986·Granted Dec 29, 1987·47 cites·16 claims
- 1975US4660635AEquipment for a pipe string such as a drill-pipe string, comprising a side entry connection for passing a cableINST FRANCAIS DU PETROLE·Filed 1986·Granted Apr 28, 1987·45 cites·2 claims
- 2073US6173787B1Method and system intended for measurements in a horizontal pipeINST FRANCAIS DU PETROLE·Filed 1998·Granted Jan 16, 2001·61 cites·22 claims
- 2173US5044437AMethod and device for performing perforating operations in a wellINST FRANCAIS DU PETROLE·Filed 1990·Granted Sep 3, 1991·57 cites·11 claims
- 2272US4729429AHydraulic pressure propelled device for making measurements and interventions during injection or production in a deflected wellINST FRANCAIS DU PETROLE·Filed 1985·Granted Mar 8, 1988·44 cites·9 claims
- 2370US5318129AMethod and device for setting up sondes against the wall of a cased wellINST FRANCAIS DU PETROLE·Filed 1992·Granted Jun 7, 1994·48 cites·18 claims
- 2469US4738312ACable cutting coupling for drilling, production, well logging or other operations in wellsINST FRANCAIS DU PETROLE·Filed 1986·Granted Apr 19, 1988·37 cites·11 claims
- 2568US7197934B2Pressure sensor with temperature compensated optical fiberCOMMISSARIAT ENERGIE ATOMIQUE·Filed 2003·Granted Apr 3, 2007·14 cites·29 claims
- 2666US6210123B1Jet pumping deviceINST FRANCAIS DU PETROLE·Filed 1999·Granted Apr 3, 2001·23 cites·9 claims
- 2766US4664189AMethod and device for carrying out measurements and operations in a wellINST FRANCAIS DU PETROLE·Filed 1984·Granted May 12, 1987·31 cites·11 claims
- 2864US6179058B1Measuring method and system comprising a semi-rigid extensionINST FRANCAIS DU PETROLE·Filed 1998·Granted Jan 30, 2001·43 cites·18 claims
- 2964US5038108ADeterming parameters of a geological environmentINST FRANCAIS DU PETROLE·Filed 1989·Granted Aug 6, 1991·26 cites·12 claims
- 3062US10190494B2System and method for storing energy in form of compressed air in tubes integrated in a tank containing water and water vapourIFP ENERGIES NOW·Filed 2016·Granted Jan 29, 2019·0 cites·20 claims
- 3157US7400811B2Sealed feedthrough assembly for optical fiberINST FRANCAIS DU PETROLE·Filed 2006·Granted Jul 15, 2008·1 cites·19 claims
- 3257US6157761AReinforced composite rodINST FRANCAIS DU PETROLE·Filed 1998·Granted Dec 5, 2000·19 cites·13 claims
- 3357US4794791AMethod and device for making measurements characterizing geological formations, in a horizontal borehole formed from an underground wayINST FRANCAIS DU PETROLE·Filed 1987·Granted Jan 3, 1989·25 cites·12 claims
- 3456US10180127B2Floating offshore wind turbine comprising an active nacelle tilt stabilization systemWITTRISCH CHRISTIAN·Filed 2011·Granted Jan 15, 2019·2 cites·3 claims
- 3556US5864099ADevice for coupling a receiver system with the wall of a wellINST FRANCAIS DU PETROLE·Filed 1997·Granted Jan 26, 1999·30 cites·15 claims
- 3654US2015167892A1System for storing energy in the form of compressed air in a set of surface tubesIFP Energies Nouvelles·Filed 2014·Application pending·0 cites
- 3753US7290625B2Reverse-circulation drilling method and systemINST FRANCAIS DU PETROLE·Filed 2005·Granted Nov 6, 2007·3 cites·9 claims
- 3853US5111880ASystem for driving a non rigid exploration device into a well where its progression by gravity is difficultINST FRANCAIS DU PETROLE·Filed 1990·Granted May 12, 1992·24 cites·15 claims
- 3952US4898240ASystem for moving a set of instruments and a method for measurement and/or intervention in a wellINST FRANCAIS DU PETROLE·Filed 1987·Granted Feb 6, 1990·21 cites·13 claims
- 4051US5707221AMethod of plural zone pumping utilizing controlled individual pump inlet in each zoneINSTITIT FRANCAIS DU PETROLE·Filed 1995·Granted Jan 13, 1998·10 cites·10 claims
- 4150US4898241AMethod and device for taking measurements and/or carrying out interventions in a well subjected to hydraulic compressionINST FRANCAIS DU PETROLE·Filed 1987·Granted Feb 6, 1990·19 cites·13 claims
- 4247US5016727AMethod and device of seismic prospection in wells and particularly deviated wellsINST FRANCAIS DU PETROLE·Filed 1990·Granted May 21, 1991·20 cites·18 claims
- 4346US5676327ADevice for storing and for handling a rod made of compositeINST FRANCAIS DU PETROLE·Filed 1995·Granted Oct 14, 1997·22 cites·14 claims
- 4445US4913227AEquipment for a drill pipe string including a side entry sub, a safety member for anchoring a cable on a support, and a method of using the equipmentINST FRANCAIS DU PETROLE·Filed 1988·Granted Apr 3, 1990·15 cites·21 claims
- 4544US7290608B2Method and system for pumping in an oil wellINST FRANCAIS DU PETROLE·Filed 2004·Granted Nov 6, 2007·6 cites·9 claims
- 4641US5636686AMeasuring assembly comprising means for orienting a part of the measuring elementsINST FRANCAIS DU PETROLE·Filed 1995·Granted Jun 10, 1997·17 cites·2 claims
- 4741US4898237AProbe and its multidirectional anchoring device in a wellINST FRANCAIS DU PETROLE·Filed 1987·Granted Feb 6, 1990·9 cites·10 claims
- 4839US4929915AProtective device for enlarging the effective diameter of a probe in large diameter wellsINST FRANCAIS DU PETROLE·Filed 1987·Granted May 29, 1990·7 cites·8 claims
- 4938US5318125AMethod for continuing measurements after recovery of a measuring tool immobilized in a wellINST FRANCAIS DU PETROLE·Filed 1992·Granted Jun 7, 1994·12 cites·11 claims
- 5035US5180011AMethod and device for carrying out measuring operations of interventions in a wellINST FRANCAIS DU PETROLE·Filed 1991·Granted Jan 19, 1993·8 cites·5 claims
Showing the top 50 of 58 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →