Hierarchy/Derived subclasses
| 194 / 302 | -> 328 | -> 329 | |
| -> 330 | |||
| -> 331 | |||
| -> 332 | -> 333 |
uspto searches
Patent Apps in 194/328Granted Patents in 194/328
Use the links above or do an advanced search in ppubs for:
(194/328.ccls. or 194/329.ccls. or 194/330.ccls. or 194/331.ccls. or 194/332.ccls. or 194/333.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.