USPC Class Details

Description: 8 bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers / 8 bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers/(636) dye or potential dye composition, additive, treatment, process, product, or ancillary dye operation (638) mixed dyes, noncomplexed (644) basic dye

Hierarchy/Derived subclasses

8 / 636

-> 638

-> 644

uspto searches

Patent Apps in 8/644

Granted Patents in 8/644

Use the links above or do an advanced search in ppubs for:
(8/644.ccls.)

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.

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