Hierarchy/Derived subclasses
707 / 821 | -> 822 | -> 823 |
-> 824 | ||
-> 825 | ||
-> 826 | ||
-> 827 |
uspto searches
Patent Apps in 707/822Granted Patents in 707/822
Use the links above or do an advanced search in ppubs for:
(707/822.ccls. or 707/823.ccls. or 707/824.ccls. or 707/825.ccls. or 707/826.ccls. or 707/827.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.