Automatic separation apparatus for four fractions of heavy oil and separation method thereof
US-12544690-B2 · Feb 10, 2026 · US
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Petrochina Co Ltd — Chemistry & Metallurgy
Petrochina Co Ltd holds 162 patents in Chemistry & Metallurgy, with representative filings summarized below.
| Metric | Value |
|---|---|
| Company | Petrochina Co Ltd |
| Technology | Chemistry & Metallurgy |
| Patents in slice | 162 |
| Recent patents in slice | 28 |
| First year | 2015 |
| Last year | 2026 |
Representative patents
Notable publications linking Petrochina Co Ltd to Chemistry & Metallurgy.
Automatic separation apparatus for four fractions of heavy oil and separation method thereof
US-12544690-B2 · Feb 10, 2026 · US
Automatic separation apparatus for four fractions of heavy oil and separation method thereof
US-12544690-B2 · Feb 10, 2026 · US
Automatic separation apparatus for four fractions of heavy oil and separation method thereof
US-12544690-B2 · Feb 10, 2026 · US
Automatic separation apparatus for four fractions of heavy oil and separation method thereof
US-12544690-B2 · Feb 10, 2026 · US
Recent filings
Latest patents from Petrochina Co Ltd in Chemistry & Metallurgy.
Automatic separation apparatus for four fractions of heavy oil and separation method thereof
US-12544690-B2 · Feb 10, 2026 · US
Automatic separation apparatus for four fractions of heavy oil and separation method thereof
US-12544690-B2 · Feb 10, 2026 · US
Automatic separation apparatus for four fractions of heavy oil and separation method thereof
US-12544690-B2 · Feb 10, 2026 · US
Automatic separation apparatus for four fractions of heavy oil and separation method thereof
US-12544690-B2 · Feb 10, 2026 · US
Automatic separation apparatus for four fractions of heavy oil and separation method thereof
US-12544690-B2 · Feb 10, 2026 · US
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