Hierarchy/Derived subclasses
| 312 / 2 | -> 6 | -> 7 |
| -> 8 | ||
| -> 9 |
CIPO searches
search just 312/6- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((312/6 <IN> CPC) <OR> (312/7 <IN> CPC) <OR> (312/8 <IN> CPC) <OR> (312/9 <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.