Hierarchy/Derived subclasses
194 / 247 | -> 249 | -> 253 | -> 254 | -> 256 |
uspto searches
Patent Apps in 194/256Granted Patents in 194/256
Use the links above or do an advanced search in ppubs for:
(194/256.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.