Hierarchy/Derived subclasses
| 25 / 2 | -> 3 | -> 11 | -> 12 |
CIPO searches
search just 25/11- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((25/11 <IN> CPC) <OR> (25/12 <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.