Method for separating 2-alkylanthracenes and use thereof for producing hydrogen peroxide
US-12391633-B2 · Aug 19, 2025 · US
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Anthraquinones, i.e. C14H8O2
Anthraquinones, i.e. C14H8O2 · 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 | C07C50/18 |
| Official title | Anthraquinones, i.e. C14H8O2 |
| Display label | Anthraquinones, i.e. C14H8O2 |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2022 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Charge transfer complex
US-2024109869-A1 · Apr 4, 2024 · US
Method for separating 2-alkylanthracenes and use thereof for producing hydrogen peroxide
US-2022177392-A1 · Jun 9, 2022 · US
Green oxidation catalytic system
US-10428043-B2 · Oct 1, 2019 · US
Preparation of 2,6- and 2,7-disubstituted anthraquinone derivates
US-10227281-B2 · Mar 12, 2019 · US
Preparation of 2,6- and 2,7-disubstituted anthraquinone derivates
US-2018215694-A1 · Aug 2, 2018 · US
Preparation of 2,6- and 2,7-disubstituted anthraquinone derivatives
US-9988268-B2 · Jun 5, 2018 · US
Preparation of 2,6- and 2,7-disubstituted anthraquinone derivatives
US-2017197830-A1 · Jul 13, 2017 · US