USPC Class Details – HistoricIP

Description: 361 electricity: electrical systems and devices / 361 electricity: electrical systems and devices/(139) control circuits for electromagnetic devices (143) systems for magnetizing, demagnetizing, or controlling the magnetic field (152) including particular drive circuit (154) including means to establish plural distinct current levels (e.g., high, low) (155) with capacitor charging or discharging through coil

Hierarchy/Derived subclasses

361 / 139

-> 143

-> 152

-> 154

-> 155

uspto searches

Patent Apps in 361/155

Granted Patents in 361/155

Use the links above or do an advanced search in ppubs for:
(361/155.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.