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Class Information
Number: 376/162
Name: Induced nuclear reactions: processes, systems, and elements > Nuclear transmutation (e.g., by means of particle or wave energy) > By neutron bombardment > Neutron activation analysis > Subterranean > Specific nuclides > Metals
Description: Subject matter wherein the recited nucleus is a nucleus of a metal atom.

Sub-classes under this class:

Class Number Class Name Patents
376/163 Aluminum, silicon 9
376/164 Uranium 7

Patents under this class:

Patent Number Title Of Patent Date Issued
6680993 Method of producing Actinium-225 and daughters Jan. 20, 2004
6577697 Field analysis of geological samples using delayed neutron activation analysis Jun. 10, 2003
5182051 Raioactive tracing with particles Jan. 26, 1993
4780266 Method for detecting drilling fluid in the annulus of a cased wellbore Oct. 25, 1988
4746801 Method and apparatus for differentiating low porosity limestones from high porosity gas sands May. 24, 1988
4702379 Ore sorting apparatus Oct. 27, 1987
4507553 Method and apparatus for identifying vanadium in earth formations Mar. 26, 1985
4379229 Measuring of gamma-ray energy due to thermal neutron capture of copper and nickel Apr. 5, 1983
4287415 Measurement of flowing water salinity within or behind wellbore casing Sep. 1, 1981
4239965 Method and apparatus for neutron induced gamma ray logging for direct porosity identification Dec. 16, 1980
4137452 Method of measuring horizontal fluid flow in cased off subsurface formations with manganese compensation Jan. 30, 1979
4136277 Exposure control system for a document copying machine Jan. 23, 1979
4135087 Method and apparatus for neutron induced gamma ray logging for lithology identification Jan. 16, 1979
4051368 Method of measuring horizontal flow speed of fluids in earth formations penetrated by a wellborehole Sep. 27, 1977
3939343 Pulsed neutron logging system for inelastic scattering gamma rays with gain compensation Feb. 17, 1976

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