Hierarchy/Derived subclasses
| 253 / 1 | -> 28 | -> 33 | -> 34 | ||
| -> 35 | |||||
| -> 36 | -> 37 | ||||
| -> 38 | -> 39 | ||||
| -> 40 | -> 41 | ||||
| -> 42 | |||||
| -> 43 | -> 44 | ||||
| -> 45 | |||||
| -> 46 | |||||
| -> 47 | -> 48 | ||||
| -> 49 | |||||
| -> 50 | |||||
| -> 51 |
CIPO searches
search just 253/33- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((253/33 <IN> CPC) <OR> (253/34 <IN> CPC) <OR> (253/35 <IN> CPC) <OR> (253/36 <IN> CPC) <OR> (253/37 <IN> CPC) <OR> (253/38 <IN> CPC) <OR> (253/39 <IN> CPC) <OR> (253/40 <IN> CPC) <OR> (253/41 <IN> CPC) <OR> (253/42 <IN> CPC) <OR> (253/43 <IN> CPC) <OR> (253/44 <IN> CPC) <OR> (253/45 <IN> CPC) <OR> (253/46 <IN> CPC) <OR> (253/47 <IN> CPC) <OR> (253/48 <IN> CPC) <OR> (253/49 <IN> CPC) <OR> (253/50 <IN> CPC) <OR> (253/51 <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.