Hierarchy/Derived subclasses
| 68 / 42 | -> 43 | -> 44 |
| -> 45 | ||
| -> 46 | ||
| -> 47 | -> 47.1 | |
| -> 48 | ||
| -> 49 | ||
| -> 50 | -> 51 | |
| -> 52 | ||
| -> 53 | ||
| -> 54 |
CIPO searches
search just 68/42- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((68/42 <IN> CPC) <OR> (68/43 <IN> CPC) <OR> (68/44 <IN> CPC) <OR> (68/45 <IN> CPC) <OR> (68/46 <IN> CPC) <OR> (68/47 <IN> CPC) <OR> (68/47.1 <IN> CPC) <OR> (68/48 <IN> CPC) <OR> (68/49 <IN> CPC) <OR> (68/50 <IN> CPC) <OR> (68/51 <IN> CPC) <OR> (68/52 <IN> CPC) <OR> (68/53 <IN> CPC) <OR> (68/54 <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.