USPC Class Details

Description: 418 rotary expansible chamber devices / 418 rotary expansible chamber devices/(83) heat exchange or non-working fluid lubricating or sealing (97) non-working and working fluids intermix in working chamber (98) non-working fluid initially directed to shaft bearing

Hierarchy/Derived subclasses

418 / 83

-> 97

-> 98

uspto searches

Patent Apps in 418/98

Granted Patents in 418/98

Use the links above or do an advanced search in ppubs for:
(418/98.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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