Nonionic Surfactants Employed with Extended Chain as the Oil Displacement Agent to use in Enhanced Oil Recovery
US-2021292636-A1 · Sep 23, 2021 · US
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Beijing Huamei Incorporated Cnpc patents
Beijing Huamei Incorporated Cnpc holds 1 patent in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 1 |
| Recent patents | 0 |
| First publication | Sep 23, 2021 |
| Latest publication | Sep 23, 2021 |
Filing trend
Year-over-year patent counts for this assignee.
Not enough yearly data to assess filing trend yet.
| Year | Patents |
|---|---|
| 2021 | 1 |
| Year | Patents |
|---|---|
| 2021 | 1 |
Recent patents
Latest publications where this party is an assignee.
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Operations & Transport | 1 |
| Chemistry & Metallurgy | 1 |
| Fixed Constructions | 1 |