Hierarchy/Derived subclasses
| 68 / 42 | -> 50 | -> 51 |
| -> 52 |
CIPO searches
search just 68/50- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((68/50 <IN> CPC) <OR> (68/51 <IN> CPC) <OR> (68/52 <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.