Hierarchy/Derived subclasses
455 / 403 | -> 422.1 | -> 436 | -> 437 | ||
-> 438 | |||||
-> 439 | -> msc | -> mtso | |||
-> 440 | |||||
-> 441 | |||||
-> 442 | |||||
-> 443 | |||||
-> 444 |
uspto searches
Patent Apps in 455/436Granted Patents in 455/436
Use the links above or do an advanced search in ppubs for:
(455/436.ccls. or 455/437.ccls. or 455/438.ccls. or 455/439.ccls. or 455/msc.ccls. or 455/mtso.ccls. or 455/440.ccls. or 455/441.ccls. or 455/442.ccls. or 455/443.ccls. or 455/444.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.