USPC Class Details

Description: 322 electricity: single generator systems / 322 electricity: single generator systems/(40) power transmitting mechanism control (41) friction-type transmission

Hierarchy/Derived subclasses

322 / 40-> 41-> 42-> 43

uspto searches

Patent Apps in 322/41

Granted Patents in 322/41

Advanced search in patft or appft for the hierarchy would be:
(ccl/322/41 or ccl/322/42 or ccl/322/43)

Press the Search button below to send the query to the USPTO site. (Granted patents search)

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.