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SCHLUMBERGER LTD

Overview
  • Total Patents
    1,326
About

SCHLUMBERGER LTD has a total of 1,326 patent applications. Its first patent ever was published in 1954. It filed its patents most often in United Kingdom, EPO (European Patent Office) and Norway. Its main competitors in its focus markets measurement, civil engineering and machines are PETROLEUM RES & DEV NV, FRACTURE ID INC and SCHLUMBERGER HOLDING LTD.

Patent filings per year

Chart showing SCHLUMBERGER LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Seeman Bronislaw 23
#2 Clark Brian 21
#3 Chang Shu-Kong 20
#4 Doll Henri-Georges 17
#5 Wraight Peter 17
#6 Stoller Christian 16
#7 Schuster Nick A 15
#8 Delpuech Alain 14
#9 Sinha Bikash K 14
#10 Kleinberg Robert L 14

Latest patents

Publication Filing date Title
DK200201192A Downhole seismic exploration device - has sensor package supported in carrier having magnetic clamp and connectable to cable
EP1230566A1 Oilfield analysis systems and methods
GB0023310D0 Processing sonic waveform measurements from array borehole logging tools
WO0120322A1 Method and device for determining asphaltene precipitation onset pressure
GB0021408D0 Geophones
GB0017929D0 A method of processing vertical seismic profile data using effective models
GB0011846D0 A method of processing seismic data
GB0003815D0 Radiation source
GB0326860D0 Validating borehole fluid sample capture initiation
EP1151326A1 Uncertainty constrained subsurface modeling
GB0104783D0 Method and system of fluid analysis and control in a hydrocarbon well
GB9927612D0 Radiation source
GB9925373D0 Downhole instrumentation and cleaning system
GB9924673D0 Method for interpreting petrophysical data
GB9923870D0 Methods and apparatus for making measurements on fluids produced from underground formations
GB9918124D0 Gravity measuring apparatus
GB9916350D0 Downhole sensing apparatus with separable elements
GB9916353D0 Sensing device
GB9910718D0 Flow meter for multi-phase mixtures
GB9907620D0 Processing sonic waveform measurements