Hierarchy/Derived subclasses
| 361 / 1 | -> 21 | -> 28 |
CIPO search
search just 361/28This 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.
Canadian Subclass Details
Description: 361 / (1) Froth Flotation (21) Specific Reagent Compositions (28) Hydrocarbon or Oil
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.
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.