Hierarchy/Derived subclasses
| 453 / 61 | -> 62 |
uspto searches
Patent Apps in 453/61Granted Patents in 453/61
Use the links above or do an advanced search in ppubs for:
(453/61.ccls. or 453/62.ccls.)
This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.