Hierarchy/Derived subclasses
70 / 53 | -> 54 | -> 55 |
CIPO searches
search just 70/53- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((70/53 <IN> CPC) <OR> (70/54 <IN> CPC) <OR> (70/55 <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.