Hierarchy/Derived subclasses
| 70 / 12 | -> 25 | -> 35 | -> 38 | -> 40 | -> 44 | -> 45 |
CIPO searches
search just 70/44- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((70/44 <IN> CPC) <OR> (70/45 <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.