Hierarchy/Derived subclasses
| 313 / 75 | -> 76 |
| -> 77 |
CIPO searches
search just 313/75- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((313/75 <IN> CPC) <OR> (313/76 <IN> CPC) <OR> (313/77 <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.