# US 12,331,823 (USPTO)

Compact rotary actuator with hollow housing, output shaft and idler shaft on coaxial axis, drive system and gearbox in the cavity, and rotational controller with dual sensors (motor rotor position + idler shaft position) axially spaced. High-torque design suitable for robotic joints.

## Key facts

- Jurisdiction: uspto
- Status: granted
- Number: US 12,331,823
- Filing date: 2022-12-02
- Grant date: 2025-06-17
- Verification posture: verified

## Parties (1)

- **assignee**: [Schaeffler Group](/companies/schaeffler.md) (verified)

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