Hierarchy/Derived subclasses
| 312 / 57 | -> 58 | -> 59 |
| -> 60 | ||
| -> 61 |
CIPO searches
search just 312/57- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((312/57 <IN> CPC) <OR> (312/58 <IN> CPC) <OR> (312/59 <IN> CPC) <OR> (312/60 <IN> CPC) <OR> (312/61 <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.