|930 / 10||-> 220||-> 221|
uspto searchesPatent Apps in 930/220
Granted Patents in 930/220
Advanced search in patft or appft for the hierarchy would be:
(ccl/930/220 or ccl/930/221 or ccl/930/222 or ccl/930/223 or ccl/930/224)
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.