Hierarchy/Derived subclasses
| 154 / 1 | -> 13 | -> 15 | -> 16 |
CIPO searches
search just 154/15- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((154/15 <IN> CPC) <OR> (154/16 <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.