Hierarchy/Derived subclasses
| 359 / 66 | -> 67 | -> 68 | -> 71 |
| -> 72 |
CIPO searches
search just 359/68- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((359/68 <IN> CPC) <OR> (359/71 <IN> CPC) <OR> (359/72 <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.