Hierarchy/Derived subclasses
| 183 / 38 | -> 40 | -> 41 | ||
| -> 42 | ||||
| -> 43 | -> 44 | |||
| -> 45 | ||||
| -> 46 | -> 47 | |||
| -> 48 | ||||
| -> 49 | ||||
| -> 50 |
CIPO searches
search just 183/40- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((183/40 <IN> CPC) <OR> (183/41 <IN> CPC) <OR> (183/42 <IN> CPC) <OR> (183/43 <IN> CPC) <OR> (183/44 <IN> CPC) <OR> (183/45 <IN> CPC) <OR> (183/46 <IN> CPC) <OR> (183/47 <IN> CPC) <OR> (183/48 <IN> CPC) <OR> (183/49 <IN> CPC) <OR> (183/50 <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.