Hierarchy/Derived subclasses
| 129 / 1 | -> 2 | |
| -> 3 | ||
| -> 3.1 | -> 3.2 |
CIPO searches
search just 129/1- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((129/1 <IN> CPC) <OR> (129/2 <IN> CPC) <OR> (129/3 <IN> CPC) <OR> (129/3.1 <IN> CPC) <OR> (129/3.2 <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.