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WELL SURVEYS INC

Overview
  • Total Patents
    150
About

WELL SURVEYS INC has a total of 150 patent applications. Its first patent ever was published in 1937. It filed its patents most often in United States, United Kingdom and Argentina. Its main competitors in its focus markets measurement, civil engineering and electrical machinery and energy are INANC FEYZI, BEASLEY CRAIG J and READ AS.

Patent filings in countries

World map showing WELL SURVEYS INCs patent filings in countries
# Country Total Patents
#1 United States 143
#2 United Kingdom 2
#3 Argentina 1
#4 Austria 1
#5 Switzerland 1
#6 Germany 1
#7 Denmark 1

Patent filings per year

Chart showing WELL SURVEYS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Youmans Arthur H 20
#2 Fearon Robert E 20
#3 Earl Fearon Robert 19
#4 Gilbert Swift 16
#5 Jacob Neufeld 16
#6 Thayer Jean M 16
#7 Alexander Scherbatskoy Serge 8
#8 Ralph Monaghan 8
#9 Bruno Pontecorvo 4
#10 Davis Robert F 4

Latest patents

Publication Filing date Title
US3200251A Apparatus for neutron-neutron well logging
US3134929A Gas pressure control means for accelerator source
US3023507A Apparatus for measuring the displacement of a well tool from an adjacent surface
US3105148A Variable thermal-conductance vacuum-walled container for scintillation detectors
US3103644A Plural channel time sharing multiplex system
US3134904A Method of radioactivity tracer logging
US3058227A Retractor device for oil well logging tool
US3024407A Belt charging means for borehole electrostatic generators
US3044175A Responder and telemetering transmitter for borehole caliper
US3110807A Method and apparatus for locating borehole cement by the use of gamma rays
US3073958A Apparatus for simultaneous neutron and photon logging with a single detector
US3071687A Geophysical prospecting methods and apparatus
US3120612A Oxygen-silicon logging method utilizing equal intensity but different energy neutrons
US3072790A Apparatus for cyclic activation logging
US3072335A Analog computer for determining confidence limits of measurement
US3007109A Apparatus for detecting casing joints
US3060326A Automatic pulse amplitude control
US3046467A Apparatus for regulating belt-type electrostatic generators
US3121164A Geophysical prospecting method by means of nuclear radiation
US3127512A Neutron-gamma geophysical prospecting method and apparatus