Hierarchy/Derived subclasses
| 212 / 23 | -> 24 | -> 25 | -> 29 | -> 30 |
CIPO searches
search just 212/29- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((212/29 <IN> CPC) <OR> (212/30 <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.