Shale inhibitors used in the water-based fluid for shale formation
US-10787602-B2 · Sep 29, 2020 · US
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Yu Xingdong patents
Yu Xingdong is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Yu Xingdong |
| Total patents | 2 |
| First publication | Dec 19, 2019 |
| Latest publication | Sep 29, 2020 |
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 |
|---|---|
| Cnpc Usa Corp | 2 |
| Beijing Huamei Inc Cnpc | 2 |
| Beijing Huamei Inc | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C09K8/035 | 2 |
| C09K8/04 | 2 |
| C09K8/528 | 2 |
| C09K2208/12 | 2 |