Hierarchy/Derived subclasses
| 312 / 15 | -> 16 |
| -> 17 |
CIPO searches
search just 312/15- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((312/15 <IN> CPC) <OR> (312/16 <IN> CPC) <OR> (312/17 <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.