Hierarchy/Derived subclasses
| 707 / 964 | -> 966 | -> 971 | -> 972 | -> 973 |
| -> 974 |
uspto searches
Patent Apps in 707/972Granted Patents in 707/972
Use the links above or do an advanced search in ppubs for:
(707/972.ccls. or 707/973.ccls. or 707/974.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.