Hierarchy/Derived subclasses
| 208 / 177 | -> 189 | -> 197 | -> 198 | ||
| -> 199 | -> 200 | ||||
| -> 201 | -> 202 |
uspto searches
Patent Apps in 208/197Granted Patents in 208/197
Use the links above or do an advanced search in ppubs for:
(208/197.ccls. or 208/198.ccls. or 208/199.ccls. or 208/200.ccls. or 208/201.ccls. or 208/202.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.