USPC Class Details

Description: 416 fluid reaction surfaces (i.e., impellers) / 416 fluid reaction surfaces (i.e., impellers)/(25) interrelated controls for impeller and drive means (27) pitch adjustment and throttle regulation with condition sensing means (28) temperature responsive control

Hierarchy/Derived subclasses

416 / 25

-> 27

-> 28

uspto searches

Patent Apps in 416/28

Granted Patents in 416/28

Use the links above or do an advanced search in ppubs for:
(416/28.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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