USPC Class Details

Description: 436 chemistry: analytical and immunological testing / 436 chemistry: analytical and immunological testing/(518) involving an insoluble carrier for immobilizing immunochemicals (519) carrier is a biological cell or cell fragment

Hierarchy/Derived subclasses

436 / 518	-> 519	-> 520	-> 521
			-> 522

uspto searches

Patent Apps in 436/519

Granted Patents in 436/519

Use the links above or do an advanced search in ppubs for:
(436/519.ccls. or 436/520.ccls. or 436/521.ccls. or 436/522.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.

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