Hierarchy/Derived subclasses
| 312 / 249.1 | -> 249.8 | -> 249.9 | |
| -> 249.11 | -> 249.12 | ||
| -> 249.13 |
uspto searches
Patent Apps in 312/249.8Granted Patents in 312/249.8
Use the links above or do an advanced search in ppubs for:
(312/249.8.ccls. or 312/249.9.ccls. or 312/249.11.ccls. or 312/249.12.ccls. or 312/249.13.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.