USPC Class Details

Description: 501 compositions: ceramic / 501 compositions: ceramic/(1) ceramic compositions (2) devitrified glass-ceramics (5) binary, ternary, quaternary, etc., metal silicate crystalline phase (e.g., mullite, diopside, sphene, plagioclase, slagcerams free of alumina, etc.) (8) divalent metal oxide aluminosilicate crystalline phase (e.g., anorthite, slagcerams, etc.)

Hierarchy/Derived subclasses

501 / 1-> 2-> 5-> 8-> 9

uspto searches

Patent Apps in 501/8

Granted Patents in 501/8

Use the links above or do an advanced search in ppubs for:
(501/8.ccls. or 501/9.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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