Hierarchy/Derived subclasses
| 310 / 10 | -> 40r | -> 127 | -> 128 | -> 129 | -> 130 |
| -> 131 | -> 132 | ||||
| -> 133 | -> 134 | ||||
| -> 135 |
uspto searches
Patent Apps in 310/128Granted Patents in 310/128
Use the links above or do an advanced search in ppubs for:
(310/128.ccls. or 310/129.ccls. or 310/130.ccls. or 310/131.ccls. or 310/132.ccls. or 310/133.ccls. or 310/134.ccls. or 310/135.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.