USPC Class Details

Description: 502 catalyst, solid sorbent, or support therefor: product or process of making / 502 catalyst, solid sorbent, or support therefor: product or process of making/(100) catalyst or precursor therefor (150) organic compound containing (162) organic phosphorus or nitrogen, except the ammonium ion (164) quaternary ammonium or phosphonium

Hierarchy/Derived subclasses

502 / 100

-> 150

-> 162

-> 164

uspto searches

Patent Apps in 502/164

Granted Patents in 502/164

Use the links above or do an advanced search in ppubs for:
(502/164.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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