# US 10,856,891 (USPTO)

Autonomous aerial delivery system using tethered descent with winch-controlled package release for precision landing.

## Key facts

- Jurisdiction: uspto
- Status: granted
- Number: US 10,856,891
- Filing date: 2018-01-01
- Grant date: 2020-12-29
- Verification posture: verified

## Parties (1)

- **assignee**: [Zipline](/companies/zipline.md) (verified)

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