Hierarchy/Derived subclasses
| 154 / 1 | -> 8 | -> 8.06 | -> 8.09 | -> 8.1 |
CIPO searches
search just 154/8.09- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((154/8.09 <IN> CPC) <OR> (154/8.1 <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.