Process to prepare lower olefins
US-2024182385-A1 · Jun 6, 2024 · US
containing iron
containing iron · 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 | C07C1/044 |
| Official title | {containing iron} |
| Display label | containing iron |
| Total patents | 85 |
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 | 7 |
| 2016 | 6 |
| 2017 | 10 |
| 2018 | 6 |
| 2019 | 11 |
| 2020 | 5 |
| 2021 | 13 |
| 2022 | 12 |
| 2023 | 4 |
| 2024 | 8 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Potassium-promoted red mud as a catalyst for forming hydrocarbons from carbon dioxide
US-11426708-B2 · Aug 30, 2022 · US
Supported catalyst and method for preparing light olefin using direct conversion of syngas
US-2021347710-A1 · Nov 11, 2021 · US
Method for preparing light olefin through catalytic syngas with high selectivity by heteroatom-doped zeolite
US-2021347711-A1 · Nov 11, 2021 · US
Hybrid catalysts comprising a mixed metal oxide component for production of c2 and c3 hydrocarbons
US-2021268484-A1 · Sep 2, 2021 · US
Potassium-promoted red mud as a catalyst for forming hydrocarbons from carbon dioxide
US-2021268480-A1 · Sep 2, 2021 · US
Catalyst and method for preparing light olefins by direct conversion of syngas
US-11084026-B2 · Aug 10, 2021 · US
Bulk-metal crystalline transition metal based heterogeneous catalysts, methods of making and uses thereof
US-2021238484-A1 · Aug 5, 2021 · US
Catalyst comprising a boron-doped active phase
US-11020728-B2 · Jun 1, 2021 · US
Supported ε/ε′ iron carbide catalyst for Fischer-Tropsch synthesis reaction, preparation method thereof and Fischer-Tropsch synthesis process
US-11007510-B2 · May 18, 2021 · US
Catalyst and method for preparing light olefin using direct conversion of syngas
US-2021121859-A1 · Apr 29, 2021 · US
Catalyst and method for direct conversion of syngas to light olefins
US-10960387-B2 · Mar 30, 2021 · US
Multistage Nanoreactor Catalyst and Preparation and Application Thereof
US-2021070672-A1 · Mar 11, 2021 · US
Supported e/e' iron carbide catalyst for fischer-tropsch synthesis reaction, preparation method thereof and fischer-tropsch synthesis process
US-2021031174-A1 · Feb 4, 2021 · US
Catalyst, and method for direct conversion of syngas to prepare light olefins
US-2021002184-A1 · Jan 7, 2021 · US
Multistage nanoreactor catalyst and preparation and application thereof
US-10875817-B2 · Dec 29, 2020 · US
Catalyst and Method Related Thereto
US-2020353452-A1 · Nov 12, 2020 · US
System and method for preparing aromatics by using syngas
US-2020157021-A1 · May 21, 2020 · US
Iron carbide nanoparticles, method for preparing same and use thereof for heat generation
US-2020047166-A1 · Feb 13, 2020 · US
Heavy petroleum residue derived iron incorporated sp2 carbon nanogranules for improved synthesis of light olefins
US-10526257-B2 · Jan 7, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C1/044?
- CPC C07C1/044 is the Cooperative Patent Classification code for “containing iron.”
- How many patents are filed under CPC C07C1/044 (containing iron)?
- Our database includes 85 publications tagged with this CPC code.
- Is patent activity under CPC C07C1/044 growing?
- Publication counts under this code: 8 in 2024 vs 2 in 2025 (latest complete years).