Hierarchy/Derived subclasses
| 68 / 42 | -> 47 | -> 47.1 |
| -> 48 | ||
| -> 49 |
CIPO searches
search just 68/47- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((68/47 <IN> CPC) <OR> (68/47.1 <IN> CPC) <OR> (68/48 <IN> CPC) <OR> (68/49 <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.