Automatic conveyor and automatic cleaning device for the handrail belt thereof
US-12479702-B2 · Nov 25, 2025 · US
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Feng Minglei patents
Feng Minglei is listed as an inventor on 3 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Feng Minglei |
| Total patents | 3 |
| First publication | May 16, 2024 |
| Latest publication | Nov 25, 2025 |
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Otis Elevator Co | 3 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| B66B23/24 | 2 |
| B66B31/003 | 2 |
| B66B31/02 | 2 |
| A61L2/10 | 2 |
| B08B3/041 | 2 |