USPC Class Details

Description: 137 fluid handling / 137 fluid handling/(803) flow affected by fluid contact, energy field or coanda effect (e.g., pure fluid device or system) (814) system comprising plural fluidic devices or stages

Hierarchy/Derived subclasses

137 / 803-> 814-> 815-> 816-> 817
   -> 818
   -> 819-> 820-> s
    -> 821

uspto searches

Patent Apps in 137/814

Granted Patents in 137/814

Use the links above or do an advanced search in ppubs for:
(137/814.ccls. or 137/815.ccls. or 137/816.ccls. or 137/817.ccls. or 137/818.ccls. or 137/819.ccls. or 137/820.ccls. or 137/s.ccls. or 137/821.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.
Display:

Back