USPC Class Details

Description: 318 electricity: motive power systems / 318 electricity: motive power systems/(560) positional servo systems (e.g., servomechanisms) (638) with particular "error-detecting" means (652) with particular position measuring instruments (663) potentiometer systems including autotransformers and wheatstone bridges (665) continuous rotation, unlimited range

Hierarchy/Derived subclasses

318 / 560

-> 638

-> 652

-> 663

-> 665

uspto searches

Patent Apps in 318/665

Granted Patents in 318/665

Use the links above or do an advanced search in ppubs for:
(318/665.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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