Diffuser, centrifugal compression power system and bladeless fan
US-11905970-B2 · Feb 20, 2024 · US
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Dou Hai patents
Dou Hai is listed as an inventor on 4 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Dou Hai |
| Total patents | 4 |
| First publication | Feb 1, 2018 |
| Latest publication | Feb 20, 2024 |
Notable patents
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Recent patents
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Gd Midea Env Appliances Mfg Co Ltd | 4 |
| Midea Group Co Ltd | 4 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| F04D29/441 | 4 |
| F04D17/10 | 4 |
| F04D25/08 | 4 |
| F04D29/624 | 4 |