|D8 / 14||-> 16||-> 1||-> 17||-> 2|
uspto searchesPatent Apps in D8/17
Granted Patents in D8/17
Advanced search in patft or appft for the hierarchy would be:
(ccl/D8/17 or ccl/D8/2)
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.