Lost circulation test method for expandable geopolymers
US-11851606-B2 · Dec 26, 2023 · US
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China Nat Petroleum Corp patents in 2023
China Nat Petroleum Corp was listed as an assignee on 27 patent publications in 2023.
| Metric | Value |
|---|---|
| Company | China Nat Petroleum Corp |
| Year | 2023 |
| Patents | 27 |
Patents
Representative publications for China Nat Petroleum Corp in 2023.
Composition and method for improving the production of petroleum hydrocarbons
US-11851612-B2 · Dec 26, 2023 · US
Preparation of degradable polyester composites and use thereof
US-2023399506-A1 · Dec 14, 2023 · US
Dissolvable magnesium alloy
US-2023392235-A1 · Dec 7, 2023 · US
Modified polyglycolic acid and molded articles for degradable downhole tools application
US-11827780-B2 · Nov 28, 2023 · US
Top CPC classifications
Most common classification codes for China Nat Petroleum Corp in 2023.
| CPC | Patents |
|---|---|
| C09K8/68 | 5 |
| C09K2208/10 | 4 |
| C09K8/602 | 4 |
| C08F220/56 | 3 |
| C09K8/584 | 3 |
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