Downhole power generation device and separate-zone waterflooding device
US-10890052-B2 · Jan 12, 2021 · US
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Ming Eryang patents
Ming Eryang is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Ming Eryang |
| Total patents | 2 |
| First publication | Sep 26, 2019 |
| Latest publication | Jan 12, 2021 |
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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 |
|---|---|
| E21B43/20 | 2 |
| H02N2/186 | 2 |
| E21B41/0085 | 2 |
| H02N2/185 | 2 |