US PATENT SUBCLASS 250 / 339.12
.~.~.~.~ Using sample absorption for chemical composition analysis

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


250 /   HD   RADIANT ENERGY

336.1  DF  INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING {16}
338.1  DF  .~ Infrared responsive {12}
339.01  DF  .~.~ With selection of plural discrete wavelengths or bands {6}
339.06  DF  .~.~.~ With radiation source {5}
339.12.~.~.~.~ Using sample absorption for chemical composition analysis {1}
339.13  DF  .~.~.~.~.~> With gaseous sample

DEFINITION

Classification: 250/339.12

Using sample absorption for chemical composition analysis:

(under subclass 339.06) Subject matter wherein chemical constituents or properties of a sample are determined by detecting and analyzing infrared radiation that has interacted with the sample.