USPC Class Details

Description: 252 compositions / 252 compositions/(500) electrically conductive or emissive compositions (518.1) metal compound containing (520.2) titanium or zirconium compound (520.22) boron, silicon, phosphorus, nitrogen, hydrogen, carbon, or halogen containing

Hierarchy/Derived subclasses

252 / 500

-> 518.1

-> 520.2

-> 520.22

uspto searches

Patent Apps in 252/520.22

Granted Patents in 252/520.22

Use the links above or do an advanced search in ppubs for:
(252/520.22.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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