Hierarchy/Derived subclasses
| 378 / 145 | -> 156 | -> 157 |
| -> 158 | ||
| -> 159 |
uspto searches
Patent Apps in 378/156Granted Patents in 378/156
Use the links above or do an advanced search in ppubs for:
(378/156.ccls. or 378/157.ccls. or 378/158.ccls. or 378/159.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.