Hierarchy/Derived subclasses
| 312 / 51 | -> 52 |
| -> 53 | |
| -> 53.1 |
CIPO searches
search just 312/51- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((312/51 <IN> CPC) <OR> (312/52 <IN> CPC) <OR> (312/53 <IN> CPC) <OR> (312/53.1 <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.