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.)

Hierarchy/Derived subclasses

501 / 1	-> 2	-> 5	-> 6	-> 7
			-> 8	-> 9

uspto searches

Patent Apps in 501/5

Granted Patents in 501/5

Use the links above or do an advanced search in ppubs for:
(501/5.ccls. or 501/6.ccls. or 501/7.ccls. or 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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