Hierarchy/Derived subclasses
| 436 / 536 | -> 537 | ||
| -> 538 | -> 539 | -> 540 | |
| -> 541 | |||
| -> 542 |
uspto searches
Patent Apps in 436/536Granted Patents in 436/536
Use the links above or do an advanced search in ppubs for:
(436/536.ccls. or 436/537.ccls. or 436/538.ccls. or 436/539.ccls. or 436/540.ccls. or 436/541.ccls. or 436/542.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.