Hierarchy/Derived subclasses
| 2 / 912 | -> 913 | -> 914 |
| -> 915 | ||
| -> 916 | ||
| -> 917 | ||
| -> 918 | ||
| -> 919 |
uspto searches
Patent Apps in 2/912Granted Patents in 2/912
Use the links above or do an advanced search in ppubs for:
(2/912.ccls. or 2/913.ccls. or 2/914.ccls. or 2/915.ccls. or 2/916.ccls. or 2/917.ccls. or 2/918.ccls. or 2/919.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.