Removal of aromatic impurities from an alkene stream using an acid catalyst
US-10144685-B2 · Dec 4, 2018 · US
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Sulfuric acid or oleum
Sulfuric acid or oleum · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C7/171 |
| Official title | Sulfuric acid or oleum |
| Display label | Sulfuric acid or oleum |
| Total patents | 3 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Removal of aromatic impurities from an alkene stream using an acid catalyst
US-2017174586-A1 · Jun 22, 2017 · US
Xylene Isomerization Process with Sulfidation
US-2016122262-A1 · May 5, 2016 · US