Hierarchy/Derived subclasses
| 977 / 700 | -> 788 | -> 802 | -> 803 | -> 804 |
| -> 805 | ||||
| -> 806 | -> 807 | |||
| -> 808 |
uspto searches
Patent Apps in 977/802Granted Patents in 977/802
Use the links above or do an advanced search in ppubs for:
(977/802.ccls. or 977/803.ccls. or 977/804.ccls. or 977/805.ccls. or 977/806.ccls. or 977/807.ccls. or 977/808.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.