Hierarchy/Derived subclasses
| 183 / 17 | -> 33 | -> 34 |
| -> 35 | ||
| -> 36 |
CIPO searches
search just 183/33- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((183/33 <IN> CPC) <OR> (183/34 <IN> CPC) <OR> (183/35 <IN> CPC) <OR> (183/36 <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.