Hierarchy/Derived subclasses
| 129 / 4 | -> 5 | -> 17 | -> 18 | |
| -> 19 | -> 20 | |||
| -> 21 |
CIPO searches
search just 129/17- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((129/17 <IN> CPC) <OR> (129/18 <IN> CPC) <OR> (129/19 <IN> CPC) <OR> (129/20 <IN> CPC) <OR> (129/21 <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.