Hierarchy/Derived subclasses
194 / 247 | -> 260 | -> 261 | -> 262 | -> 267 | -> 268 | -> 269 |
-> 270 | ||||||
-> 271 |
uspto searches
Patent Apps in 194/268Granted Patents in 194/268
Use the links above or do an advanced search in ppubs for:
(194/268.ccls. or 194/269.ccls. or 194/270.ccls. or 194/271.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.