Hierarchy/Derived subclasses
135 / 87 | -> 88.13 | -> 88.14 | -> 88.16 | -> 88.17 | -> 88.18 |
uspto searches
Patent Apps in 135/88.18Granted Patents in 135/88.18
Use the links above or do an advanced search in ppubs for:
(135/88.18.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.