Oil well optical fiber multi-parameter testing method and apparatus
US-12509985-B2 · Dec 30, 2025 · US
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Xu Likun patents
Xu Likun is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Xu Likun |
| Total patents | 2 |
| First publication | Oct 2, 2025 |
| Latest publication | Dec 30, 2025 |
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Petrochina Co Ltd | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G01D21/02 | 2 |
| E21B2200/20 | 2 |
| G01K11/32 | 2 |
| E21B47/135 | 2 |
| G01L11/025 | 2 |