US PATENT SUBCLASS 702 / 28
.~.~.~ Using radiant energy

Current as of: June, 1999
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702 /   HD   DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING

1  DF  MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT {6}
22  DF  .~ Chemical analysis {6}
27  DF  .~.~ Molecular structure or composition determination {1}
28.~.~.~ Using radiant energy

DEFINITION

Classification: 702/28

Using radiant energy:

(under subclass 27) Subject matter comprising a radiation source (e.g., X-ray, infrared light source, spectrophotometer) for irradiating the sample with a beam to determine its structure or composition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

8, for well logging or borehole by radiation.

40, for flaw or defect detection by radiant energy.

49, for flow metering using radiant energy.

134+, for temperature measuring system by radiant energy.

172, for thickness or width measurement system using radiant energy.

SEE OR SEARCH CLASS 250, Radiant Energy,

339.12+, for invisible radiant energy responsive electric signalling using sample absorption for chemical composition analysis.