Polymer expanding material used in infiltration or seepage watery environment and preparation method thereof
US-11618802-B2 · Apr 4, 2023 · US
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Li Manjun patents
Li Manjun is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Li Manjun |
| Total patents | 2 |
| First publication | Aug 13, 2020 |
| Latest publication | Apr 4, 2023 |
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 |
|---|---|
| Univ Zhengzhou | 2 |
| Safekey Engineering Tech Zhengzhou Ltd | 1 |
| Safekey Engineering Tech (Zhengzhou) Ltd | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C08G18/7664 | 2 |
| C08G18/42 | 2 |
| E02B3/10 | 2 |
| Y02A10/11 | 2 |
| C08K5/521 | 2 |