Hierarchy/Derived subclasses
| 157 / 1.1 | -> 1.35 | -> 1.47 | -> 1.48 |
| -> 1.49 |
uspto searches
Patent Apps in 157/1.47Granted Patents in 157/1.47
Use the links above or do an advanced search in ppubs for:
(157/1.47.ccls. or 157/1.48.ccls. or 157/1.49.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.