USPC Class Details

Description: 418 rotary expansible chamber devices / 418 rotary expansible chamber devices/(16) with changeable working chamber magnitude (18) intermittently accelerated and receding members rotate in same path (alternating piston type)

Hierarchy/Derived subclasses

418 / 16

-> 18

uspto searches

Patent Apps in 418/18

Granted Patents in 418/18

Use the links above or do an advanced search in ppubs for:
(418/18.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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