Hierarchy/Derived subclasses
| 154 / 41 | -> 71 | -> 71.03 | -> 71.04 |
| -> 71.05 |
CIPO searches
search just 154/71.03- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((154/71.03 <IN> CPC) <OR> (154/71.04 <IN> CPC) <OR> (154/71.05 <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.