Di-alkyl chain surfactants as a main surfactant for enhancing oil recovery for tight oil formations
US-12565618-B2 · Mar 3, 2026 · US
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Vaughan Steven patents
Vaughan Steven is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Vaughan Steven |
| Total patents | 2 |
| First publication | Sep 21, 2023 |
| Latest publication | Mar 3, 2026 |
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Major assignees
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| Assignee | Patents |
|---|---|
| Cnpc Usa Corp | 2 |
| Beijing Huamei Inc | 2 |
| China Nat Petroleum Corp | 2 |
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