Hierarchy/Derived subclasses
| 345 / 29 | -> 53 | -> 54 |
CIPO searches
search just 345/53- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((345/53 <IN> CPC) <OR> (345/54 <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.