Hierarchy/Derived subclasses
154 / 1 | -> 2 | -> 3 |
-> 4 |
CIPO searches
search just 154/2- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((154/2 <IN> CPC) <OR> (154/3 <IN> CPC) <OR> (154/4 <IN> CPC))
This will show what classes derive from the input. Ex: entering 78/35 shows the derived classes and the search that can be used to find patents in those subclasses.