Hierarchy/Derived subclasses
| 313 / 35 | -> 35.2 | -> 35.22 | -> 35.221 | -> 35.2211 |
| -> 35.222 |
CIPO searches
search just 313/35.22- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((313/35.22 <IN> CPC) <OR> (313/35.221 <IN> CPC) <OR> (313/35.2211 <IN> CPC) <OR> (313/35.222 <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.