Hierarchy/Derived subclasses
| 253 / 1 | -> 13 | -> 14 | -> 15 | |
| -> 16 | ||||
| -> 17 | -> 18 | -> 19 | ||
| -> 20 | ||||
| -> 21 | ||||
| -> 22 | -> 23 | |||
| -> 24 | ||||
| -> 25 | -> 26 | |||
| -> 27 |
CIPO searches
search just 253/13- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((253/13 <IN> CPC) <OR> (253/14 <IN> CPC) <OR> (253/15 <IN> CPC) <OR> (253/16 <IN> CPC) <OR> (253/17 <IN> CPC) <OR> (253/18 <IN> CPC) <OR> (253/19 <IN> CPC) <OR> (253/20 <IN> CPC) <OR> (253/21 <IN> CPC) <OR> (253/22 <IN> CPC) <OR> (253/23 <IN> CPC) <OR> (253/24 <IN> CPC) <OR> (253/25 <IN> CPC) <OR> (253/26 <IN> CPC) <OR> (253/27 <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.