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) (822) plural power inputs to single device (823) intersecting at interaction region (e.g., comparator) (824) co-lineal, oppositely-directed power inputs (e.g., impact modulator)

Hierarchy/Derived subclasses

137 / 803-> 822-> 823-> 824

uspto searches

Patent Apps in 137/824

Granted Patents in 137/824

Use the links above or do an advanced search in ppubs for:
(137/824.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