Hierarchy/Derived subclasses
| 154 / 1 | -> 27 | -> 27.01 | -> 27.02 |
| -> 27.03 | |||
| -> 27.04 |
CIPO searches
search just 154/27- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((154/27 <IN> CPC) <OR> (154/27.01 <IN> CPC) <OR> (154/27.02 <IN> CPC) <OR> (154/27.03 <IN> CPC) <OR> (154/27.04 <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.