Hierarchy/Derived subclasses
| 28 / 29 | -> 31 | -> 32 | ||
| -> 33 | ||||
| -> 34 | ||||
| -> 35 | -> 36 | |||
| -> 37 | ||||
| -> 38 | -> 39 | |||
| -> 40 | ||||
| -> 41 | ||||
| -> 42 | -> 43 | |||
| -> 44 | ||||
| -> 45 | ||||
| -> 46 | -> 47 | |||
| -> 48 | ||||
| -> 49 |
CIPO searches
search just 28/31- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((28/31 <IN> CPC) <OR> (28/32 <IN> CPC) <OR> (28/33 <IN> CPC) <OR> (28/34 <IN> CPC) <OR> (28/35 <IN> CPC) <OR> (28/36 <IN> CPC) <OR> (28/37 <IN> CPC) <OR> (28/38 <IN> CPC) <OR> (28/39 <IN> CPC) <OR> (28/40 <IN> CPC) <OR> (28/41 <IN> CPC) <OR> (28/42 <IN> CPC) <OR> (28/43 <IN> CPC) <OR> (28/44 <IN> CPC) <OR> (28/45 <IN> CPC) <OR> (28/46 <IN> CPC) <OR> (28/47 <IN> CPC) <OR> (28/48 <IN> CPC) <OR> (28/49 <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.