Hierarchy/Derived subclasses
| 112 / 53 | -> 63 | -> 70 | -> 71 | |
| -> 72 | -> 73 |
CIPO searches
search just 112/70- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((112/70 <IN> CPC) <OR> (112/71 <IN> CPC) <OR> (112/72 <IN> CPC) <OR> (112/73 <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.