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PRAD RES & DEV NV

Overview
  • Total Patents
    241
About

PRAD RES & DEV NV has a total of 241 patent applications. Its first patent ever was published in 1980. It filed its patents most often in Brazil, China and EPO (European Patent Office). Its main competitors in its focus markets measurement, civil engineering and basic materials chemistry are SCHLUMBERGER TECHNOLOGY BV, SCHLUMBERGER CA LTD and PRAD RES & DEV LTD.

Patent filings per year

Chart showing PRAD RES & DEV NVs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Clark Brian 9
#2 Drochon Bruno 7
#3 Patel Dinesh R 6
#4 Hunt Andrew 6
#5 Sheppard Michael 5
#6 Bradbury Leslie 5
#7 Michaux Michel 5
#8 Vasques Ricardo 5
#9 Legendre Emmanuel 4
#10 Collins Anthony 4

Latest patents

Publication Filing date Title
CN102037212A Drilling wells in compartmentalized reservoirs
CN101545372A Carrier for pipe conveying well measuring component
CN101680296A Apparatus, system, and method for determining injected fluid vertical placement
CN101267074A Connector assembly for use with an electrical submersible component in a deepwater environment
EP2075403A1 Real-time measurement of reservoir fluid properties
EP2075303A1 Spacer fluid additive
EP2063069A1 Autonomous wellbore navigation device
EP2055686A1 Additive for controlliing cement slurry rheology
EP2055683A1 Sealant Composition
EP2039878A1 Subsea lateral drilling
BRPI0703388A method of use in a well, and system of use in a well
BRPI0703402A method of obtaining a fluid sample from an underground formation traversed by a drilled hole, and apparatus for obtaining a hydrocarbon deposit forming fluid sample traversed by a drilled hole
SG139643A1 Electrical submersible pump stage construction
SG158159A1 Autofrettage process for a pump fluid end
CN105840136A Pump assembly, well completion device at sea and method for transferring slurry and cement paste to wellholes
EG24736A Measuring a characteristic of a well proximate a region to be gravel packed
BRPI0701279A2 set of electrodes for electrical and magnetic measurements in a marine environment, method for determining electric and magnetic fields in a marine environment, and system for measuring voltages at various locations in a marine environment
EP1983153A1 Flexible liner for drilled drainhole deployment
EP1977873A1 Drag reducer for powdery cement compositions
CN101263276A Interface and method for wellbore telemetry system