Alkylaromatic sulfonates for enhanced oil recovery process
US-9587168-B2 · Mar 7, 2017 · US
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Campbell Curt B patents
Campbell Curt B holds 2 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 2 |
| Recent patents | 0 |
| First publication | Mar 31, 2015 |
| Latest publication | Mar 7, 2017 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Top CPC classifications
Most common classification codes in this portfolio.
| CPC | Patents |
|---|---|
| C10M159/22 | 1 |
| C10N2010/12 | 1 |
| C10N2040/04 | 1 |
| C10N2030/04 | 1 |
| C10N2020/071 | 1 |
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Chemistry & Metallurgy | 2 |
| Fixed Constructions | 1 |