Hierarchy/Derived subclasses
| 154 / 108 | -> 121 | -> 121.01 |
| -> 121.02 | ||
| -> 121.03 |
CIPO searches
search just 154/121- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((154/121 <IN> CPC) <OR> (154/121.01 <IN> CPC) <OR> (154/121.02 <IN> CPC) <OR> (154/121.03 <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.