Description: 362 / (26) Ion Exchange (40) Cation Exchange

Hierarchy/Derived subclasses

362 / 26	-> 40	-> 41
		-> 42

CIPO searches

search just 362/40

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((362/40 <IN> CPC) <OR> (362/41 <IN> CPC) <OR> (362/42 <IN> CPC))

This will show what classes derive from the input. Ex: entering 78/35 shows the derived classes and the search that can be used to find patents in those subclasses.

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