Hierarchy/Derived subclasses
302 / 4 | -> 8 | -> 9 | -> 10 | -> 11 |
-> 12 |
CIPO searches
search just 302/9- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((302/9 <IN> CPC) <OR> (302/10 <IN> CPC) <OR> (302/11 <IN> CPC) <OR> (302/12 <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.