Method for preparing linear hydrocarbon double acid with cyclic hydrocarbon oxidation catalyst
US-12583811-B2 · Mar 24, 2026 · US
with molecular oxygen
with molecular oxygen · 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 | C07C51/313 |
| Official title | {with molecular oxygen} |
| Display label | with molecular oxygen |
| Total patents | 37 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 7 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 9 |
| 2021 | 2 |
| 2022 | 2 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of preparing glucaric acid from glucose using nitroxide radical-mediated organocatalyst and method of separating glucaric acid
US-2025042832-A1 · Feb 6, 2025 · US
Methods of depolymerizing lignin
US-12215077-B2 · Feb 4, 2025 · US
Method for preparing linear hydrocarbon double acid with cyclic hydrocarbon oxidation catalyst
US-2024343668-A1 · Oct 17, 2024 · US
Single step process for the oxidation of cyclohexane
US-11479523-B2 · Oct 25, 2022 · US
Methods of depolymerizing lignin
US-2022127217-A1 · Apr 28, 2022 · US
Immobilized metalloporphyrin catalyst and its utilization in maleic acid preparation
US-11110445-B2 · Sep 7, 2021 · US
A single step process for the oxidation of cyclohexane
US-2021130278-A1 · May 6, 2021 · US
Porous shaped metal-carbon products
US-2020353449-A1 · Nov 12, 2020 · US
Porous shaped carbon products
US-2020338530-A1 · Oct 29, 2020 · US
Porous shaped carbon products
US-10722867-B2 · Jul 28, 2020 · US
Porous shaped metal-carbon products
US-10722869-B2 · Jul 28, 2020 · US
Multi-zoned catalyst system for oxidation of o-xylene and/or naphthalene to phthalic anhydride
US-10710054-B2 · Jul 14, 2020 · US
Immobilized Metalloporphyrin Catalyst and Its Utilization in Maleic Acid Preparation
US-2020101449-A1 · Apr 2, 2020 · US
Porous shaped metal-carbon products
US-2020055029-A1 · Feb 20, 2020 · US
Production of maleic acid, fumaric acid, or maleic anhydride from levulinic acid analogs
US-10556852-B2 · Feb 11, 2020 · US
Immobilized metalloporphyrin catalyst and its utilization in maleic acid preparation
US-10525454-B2 · Jan 7, 2020 · US
Porous shaped metal-carbon products
US-10464048-B2 · Nov 5, 2019 · US
Immobilized Metalloporphyrin Catalyst and Its Utilization in Maleic Acid Preparation
US-2019091676-A1 · Mar 28, 2019 · US
Production of maleic acid, fumaric acid, or maleic anhydride from levulinic acid analogs
US-2018354883-A1 · Dec 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C51/313?
- CPC C07C51/313 is the Cooperative Patent Classification code for “with molecular oxygen.”
- How many patents are filed under CPC C07C51/313 (with molecular oxygen)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC C07C51/313 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).