UNITED GEOPHYSICAL CORP innovation strategy

Patent filings in countries

#	Technology
#1	Geophysics
#2	Measuring electric variables
#3	Unspecified technologies
#4	Unspecified technologies
#5	Optical computing devices
#6	Optical systems
#7	Earth drilling
#8	Hybrid computing arrangements
#9	Generating mechanical vibrations
#10	Transmission

Publication	Filing date	Title
US4330873A	1979-05-29	Aplanatic geophysical exploration system
US4188611A	1978-01-09	Seismic prospecting system
US4320472A	1977-11-14	Digital geophone system
US4201972A	1977-10-28	Seismic prospecting system
US4202048A	1976-11-11	Seismic prospecting system
AU1491976A	1976-06-15	Sample splitter
CA1027226A	1973-10-25	Seismic prospecting system
CA1019055A	1973-10-25	Seismic prospecting system
AU3543571A	1971-11-05	Geophysical exploration system
CA938021A	1971-06-24	Geophysical exploration system
US3711824A	1971-01-15	Method of producing underwater seismic waves and apparatus therefor
US3449553A	1965-08-23	Computer for determining the correlation function of variable signals
US3444360A	1965-07-12	Digital multiplier followed by a digital-to-analog converter
US3370268A	1964-06-24	Method of processing geological and geophysical data
US3301274A	1964-01-23	Quick opening high pressure valve
US3283845A	1963-09-25	Seismic prospecting system
US3283844A	1963-09-05	Seismic prospecting system
US3241102A	1961-04-03	System for synthesizing seismograms from well logs
US3051926A	1959-03-27	Seismic prospecting system
US2947377A	1956-11-29	Well-shooting system