# US7920941B2 (USPTO)

Dust detection method and apparatus for cleaning robot. Assigned to Samsung Electronics Co., Ltd.

## Key facts

- Jurisdiction: uspto
- Status: granted
- Number: US7920941B2
- Filing date: 2005-03-29
- Grant date: 2011-04-12
- Verification posture: reported

## Parties (1)

- **assignee**: [Samsung Electronics](/companies/samsung.md) (reported)

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