Hierarchy/Derived subclasses
| 361 / 1 | -> 2 | -> 3 | -> 4 | -> 5 |
CIPO searches
search just 361/4- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((361/4 <IN> CPC) <OR> (361/5 <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.