Hierarchy/Derived subclasses
| 271 / 8.1 | -> 264 | -> 265.01 | -> 265.04 |
uspto searches
Patent Apps in 271/265.04Granted Patents in 271/265.04
Use the links above or do an advanced search in ppubs for:
(271/265.04.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.