US PATENT SUBCLASS 436 / 162
.~ Utilizing paper or thin layer plate


Current as of: June, 1999
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436 /   HD   CHEMISTRY: ANALYTICAL AND IMMUNOLOGICAL TESTING

161  DF  INCLUDING CHROMATOGRAPHY {1}
162.~ Utilizing paper or thin layer plate


DEFINITION

Classification: 436/162

Utilizing paper or thin layer plate:

(under subclass 161) Processes or compositions in which the sorbent comprises a fibrous web or a thin coating of sorptive material or a flat substrate and wherein separation occurs along the plane of the web or coating.

SEE OR SEARCH CLASS

210, Liquid Purification or Separation,

658, for a process of paper or thin layer chromatography without the use of a chromophore to separate a material into its constituents.