Methods and systems for determining well shut-in pressures of oil and gas well drilling
US-2025101865-A1 · Mar 27, 2025 · US
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Qing Yu patents
Qing Yu is listed as an inventor on 1 patent in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Qing Yu |
| Total patents | 1 |
| First publication | Mar 27, 2025 |
| Latest publication | Mar 27, 2025 |
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Univ Southwest Petroleum | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B44/00 | 1 |
| E21B49/087 | 1 |
| E21B47/0025 | 1 |
| E21B47/06 | 1 |
| E21B2200/20 | 1 |