Ventilation drag reduction device and marine ventilation drag reduction system including same
US-12589833-B2 · Mar 31, 2026 · US
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Liu Weifa patents
Liu Weifa is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Liu Weifa |
| Total patents | 2 |
| First publication | Nov 2, 2023 |
| Latest publication | Mar 31, 2026 |
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Univ Jiangsu Science & Tech | 2 |
| Marine Equipment And Tech Institute Of Just | 2 |
| China Merchants Jinling Shipbuilding Jiangsu Co Ltd | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| B63B2001/387 | 2 |
| Y02T70/10 | 2 |
| B63B1/38 | 2 |