Methods for processing aromatic compounds
US-2025263610-A1 · Aug 21, 2025 · US
by splitting polyaryl compounds at a bond between uncondensed six-membered aromatic rings, e.g. biphenyl to benzene
by splitting polyaryl compounds at a bond between uncondensed six-membered aromatic rings, e.g. biphenyl to benzene · 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 | C07C4/26 |
| Official title | by splitting polyaryl compounds at a bond between uncondensed six-membered aromatic rings, e.g. biphenyl to benzene |
| Display label | by splitting polyaryl compounds at a bond between uncondensed six-membered aromatic rings, e.g. biphenyl to benzene |
| Total patents | 35 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 9 |
| 2021 | 14 |
| 2022 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Processes and systems for producing one or more of benzene, toluene, or mixed xylenes
US-11370973-B2 · Jun 28, 2022 · US
Methods and systems of upgrading heavy aromatics stream to petrochemical feedstock
US-11279663-B2 · Mar 22, 2022 · US
Catalytic hydrodearylation of heavy aromatic streams containing dissolved hydrogen with fractionation
US-11267769-B2 · Mar 8, 2022 · US
Processes and systems for producing one or more of benzene, toluene, or mixed xylenes
US-2022009856-A1 · Jan 13, 2022 · US
Methods for producing multifunctional catalysts for upgrading pyrolysis oil
US-11130119-B2 · Sep 28, 2021 · US
Methods for producing mesoporous zeolite multifunctional catalysts for upgrading pyrolysis oil
US-11123725-B2 · Sep 21, 2021 · US
Integrated methods and systems of hydrodearylation and hydrodealkylation of heavy aromatics to produce benzene, toluene, and xylenes
US-11066609-B2 · Jul 20, 2021 · US
Methods and systems of upgrading heavy aromatics stream to petrochemical feedstock
US-11066344-B2 · Jul 20, 2021 · US
Methods for producing multifunctional catalysts for upgrading pyrolysis oil
US-11027271-B2 · Jun 8, 2021 · US
Catalytic hydrodearylation of heavy aromatic streams containing dissolved hydrogen with fractionation
US-2021139393-A1 · May 13, 2021 · US
Integrated methods and systems of hydrodearylation and hydrodealkylation of heavy aromatics to produce benzene, toluene, and xylenes
US-2021130709-A1 · May 6, 2021 · US
Methods for producing mesoporous zeolite multifunctional catalysts for upgrading pyrolysis oil
US-10953396-B2 · Mar 23, 2021 · US
Catalytic hydrodearylation of heavy aromatic stream containing dissolved hydrogen
US-10899685-B1 · Jan 26, 2021 · US
Methods for producing multifunctional catalysts for upgrading pyrolysis oil
US-2021001320-A1 · Jan 7, 2021 · US
Methods for producing mesoporous zeolite multifunctional catalysts for upgrading pyrolysis oil
US-2021001318-A1 · Jan 7, 2021 · US
Methods for producing multifunctional catalysts for upgrading pyrolysis oil
US-2021001319-A1 · Jan 7, 2021 · US
Methods for producing multifunctional catalysts for upgrading pyrolysis oil
US-2021001321-A1 · Jan 7, 2021 · US
Methods for producing mesoporous zeolite multifunctional catalysts for upgrading pyrolysis oil
US-2021001317-A1 · Jan 7, 2021 · US
Methods for producing multifunctional catalysts for upgrading pyrolysis oil
US-10870106-B1 · Dec 22, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C4/26?
- CPC C07C4/26 is the Cooperative Patent Classification code for “by splitting polyaryl compounds at a bond between uncondensed six-membered aromatic rings, e.g. biphenyl to benzene.”
- How many patents are filed under CPC C07C4/26 (by splitting polyaryl compounds at a bond between uncondensed six-membered aromatic rings, e.g. biphenyl to benzene)?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC C07C4/26 growing?
- Publication counts under this code: 4 in 2022 vs 1 in 2025 (latest complete years).