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Christian Wittrisch
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Rueil Malmaison, FR
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Patents Grants
last 30 patents
Information
Patent Grant
System and method for storing energy in form of compressed air in t...
Patent number
10,190,494
Issue date
Jan 29, 2019
IFP ENERGIES NOUVELLES
Christian Wittrisch
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Floating offshore wind turbine comprising an active nacelle tilt st...
Patent number
10,180,127
Issue date
Jan 15, 2019
IFP Energies Nouvelles
Christian Wittrisch
F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information
Patent Grant
Sealed feedthrough assembly for optical fiber
Patent number
7,400,811
Issue date
Jul 15, 2008
Institut Francais du Petrole
Christian Wittrisch
G02 - OPTICS
Information
Patent Grant
Reverse-circulation drilling method and system
Patent number
7,290,625
Issue date
Nov 6, 2007
Institut Francais du Petrole
Benoit Amaudric Du Chaffaut
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and system for pumping in an oil well
Patent number
7,290,608
Issue date
Nov 6, 2007
Institut Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure sensor with temperature compensated optical fiber
Patent number
7,197,934
Issue date
Apr 3, 2007
Institut Francais du Petrole
Christian Wittrisch
G01 - MEASURING TESTING
Information
Patent Grant
Connection device for optical fiber
Patent number
7,114,855
Issue date
Oct 3, 2006
Institut Francais du Petrole
Christian Wittrisch
G02 - OPTICS
Information
Patent Grant
Controlled-pressure drop liner
Patent number
7,100,686
Issue date
Sep 5, 2006
Institut Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Jet pumping device
Patent number
6,210,123
Issue date
Apr 3, 2001
Institut Francais du Petrole
Christian Wittrisch
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Measuring method and system comprising a semi-rigid extension
Patent number
6,179,058
Issue date
Jan 30, 2001
Institut Francis du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and system intended for measurements in a horizontal pipe
Patent number
6,173,787
Issue date
Jan 16, 2001
Institut Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Reinforced composite rod
Patent number
6,157,761
Issue date
Dec 5, 2000
Institut Francais du Petrole
Christian Wittrisch
G02 - OPTICS
Information
Patent Grant
Axial-flow and centrifugal pumping system
Patent number
5,961,282
Issue date
Oct 5, 1999
Institut Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Device for coupling a receiver system with the wall of a well
Patent number
5,864,099
Issue date
Jan 26, 1999
Institut Francais du Petrole
Christian Wittrisch
G01 - MEASURING TESTING
Information
Patent Grant
Method and device for producing by pumping in a horizontal drain hole
Patent number
5,829,529
Issue date
Nov 3, 1998
Institut Francais de Petrole
Henri Cholet
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of plural zone pumping utilizing controlled individual pump...
Patent number
5,707,221
Issue date
Jan 13, 1998
Institit Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Device for storing and for handling a rod made of composite
Patent number
5,676,327
Issue date
Oct 14, 1997
Institut Francais du Petrole
Christian Wittrisch
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Measuring assembly comprising means for orienting a part of the mea...
Patent number
5,636,686
Issue date
Jun 10, 1997
Institut Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Measuring device and method in a hydrocarbon production well
Patent number
5,505,259
Issue date
Apr 9, 1996
Institut Francais du Petrole
Christian Wittrisch
G02 - OPTICS
Information
Patent Grant
Device, system and method for drilling and completing a lateral well
Patent number
5,458,209
Issue date
Oct 17, 1995
Institut Francais du Petrole
Lew Hayes
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pumping device comprising two suction inlet holes with application...
Patent number
5,447,416
Issue date
Sep 5, 1995
Institut Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Seismic prospecting method and device using a drill bit working in...
Patent number
5,372,207
Issue date
Dec 13, 1994
Institut Francais du Petrole
Charles Naville
G01 - MEASURING TESTING
Information
Patent Grant
System, support for carrying out measurings and/or servicings in a...
Patent number
5,353,872
Issue date
Oct 11, 1994
Institut Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for continuing measurements after recovery of a measuring to...
Patent number
5,318,125
Issue date
Jun 7, 1994
Institut Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and device for setting up sondes against the wall of a cased...
Patent number
5,318,129
Issue date
Jun 7, 1994
Institut Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and device for carrying out measurings and/or servicings in...
Patent number
5,305,830
Issue date
Apr 26, 1994
Institut Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
System for sensing acoustic waves in wells, allowing the mechanical...
Patent number
5,259,452
Issue date
Nov 9, 1993
Institut Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Device for carrying out interventions in nonflowing deflected produ...
Patent number
5,217,072
Issue date
Jun 8, 1993
Institut Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and device for carrying out interventions in wells where hig...
Patent number
5,217,075
Issue date
Jun 8, 1993
Institut Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and device for carrying out measuring operations of interven...
Patent number
5,180,011
Issue date
Jan 19, 1993
Institut Francais du Petrole
Christian Wittrisch
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
SYSTEM AND METHOD FOR STORING ENERGY IN FORM OF COMPRESSED AIR IN T...
Publication number
20160222881
Publication date
Aug 4, 2016
IFP Energies nouvelles
Christian WITTRISCH
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
SYSTEM FOR STORING ENERGY IN THE FORM OF COMPRESSED AIR IN A SET OF...
Publication number
20150167892
Publication date
Jun 18, 2015
IFP ENERGIES NOUVELLES
Christian WITTRISCH
F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information
Patent Application
FLOATING OFFSHORE WIND TURBINE COMPRISING AN ACTIVE NACELLE TILT ST...
Publication number
20130302139
Publication date
Nov 14, 2013
IFP ENERGIES NOUVELLES
Christian Wittrisch
F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information
Patent Application
Sealed feedthrough assembly for optical fiber
Publication number
20060210231
Publication date
Sep 21, 2006
Christian Wittrisch
G02 - OPTICS
Information
Patent Application
Pressure sensor with temperature compensated optical fiber
Publication number
20060163456
Publication date
Jul 27, 2006
Christian Wittrisch
G01 - MEASURING TESTING
Information
Patent Application
Reverse-circulation drilling method and system
Publication number
20060060385
Publication date
Mar 23, 2006
Benoit Amaudric Du Chaffaut
E21 - EARTH DRILLING MINING
Information
Patent Application
Connection device for optical fiber
Publication number
20050207708
Publication date
Sep 22, 2005
Christian Wittrisch
G02 - OPTICS
Information
Patent Application
Method and system for pumping in an oil well
Publication number
20050061517
Publication date
Mar 24, 2005
Christian Wittrisch
E21 - EARTH DRILLING MINING
Information
Patent Application
Controlled-pressure drop liner
Publication number
20040108107
Publication date
Jun 10, 2004
Christian Wittrisch
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL