Hierarchy/Derived subclasses
| 25 / 98 | -> 123 | -> 130 | -> 135 | -> 136 | -> 137 | -> 138 |
CIPO searches
search just 25/136- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((25/136 <IN> CPC) <OR> (25/137 <IN> CPC) <OR> (25/138 <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.