Hierarchy/Derived subclasses
| 154 / 41 | -> 53 | -> 53.05 | -> 53.09 | -> 53.1 |
| -> 53.11 |
CIPO searches
search just 154/53.09- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((154/53.09 <IN> CPC) <OR> (154/53.1 <IN> CPC) <OR> (154/53.11 <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.