Hierarchy/Derived subclasses
| 313 / 162 | -> 167 | -> 168 |
| -> 169 |
CIPO searches
search just 313/167- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((313/167 <IN> CPC) <OR> (313/168 <IN> CPC) <OR> (313/169 <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.