Quick fixing device for measuring tunnel peripheral convergence and application method thereof
US-11555700-B2 · Jan 17, 2023 · US
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Cui Yiwei patents
Cui Yiwei is listed as an inventor on 4 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Cui Yiwei |
| Total patents | 4 |
| First publication | Apr 30, 2020 |
| Latest publication | Jan 17, 2023 |
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Changan Univ | 4 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G06K19/06037 | 2 |
| G01C15/06 | 2 |
| G01C15/002 | 2 |
| G06K7/1417 | 2 |
| G01B11/16 | 2 |