Chemical looping gasification method for iron-rich sludge
US-2025333659-A1 · Oct 30, 2025 · US
Redox processes
Redox processes · 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 | C10J3/725 |
| Official title | {Redox processes} |
| Display label | Redox processes |
| Total patents | 63 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 9 |
| 2017 | 5 |
| 2018 | 14 |
| 2019 | 7 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Oxygen carrier-mediated heating system
US-2025312761-A1 · Oct 9, 2025 · US
Process for production of hydrogen with transport from chemical looping using mixture of partial oxidation oxygen carriers and combustion oxygen carriers
US-2025250166-A1 · Aug 7, 2025 · US
Process for production of hydrogen with transport from chemical looping using mixture of partial oxidation oxygen carriers and combustion oxygen carriers
US-12319575-B2 · Jun 3, 2025 · US
Reactor for producing synthesis gas by partial oxidation with improved synthesis gas cooling
US-2024417250-A1 · Dec 19, 2024 · US
Redox reaction facilitated carbon dioxide capture from flue gas and conversion to carbon monoxide
US-12161969-B2 · Dec 10, 2024 · US
Process for production of H2 rich synthesis gas from coal/steam with Cu—Fe-alumina based catalysts
US-12122967-B1 · Oct 22, 2024 · US
Method and apparatus for converting carbon-based feedstocks into usable products using rotary generated thermal energy
US-2024343978-A1 · Oct 17, 2024 · US
Redox looping systems and methods for production of oxidized products
US-2023357005-A1 · Nov 9, 2023 · US
Gasification reactor adaptable for feedstock with wide particle size distribution
US-11713428-B2 · Aug 1, 2023 · US
Gasification reactor adaptable for feedstock with wide particle size distribution
US-2023095044-A1 · Mar 30, 2023 · US
Conversion of catalytic coke into synthetic gas from a fluid catalytic cracking (FCC) process using a chemical looping system and methods related thereto
US-11591531-B2 · Feb 28, 2023 · US
Redox reaction facilitated carbon dioxide capture from flue gas and conversion to carbon monoxide
US-2022331736-A1 · Oct 20, 2022 · US
Process for production of hydrogen with transport from chemical looping using mixture of partial oxidation oxygen carriers and combustion oxygen carriers
US-2022219976-A1 · Jul 14, 2022 · US
System to maximize co from fluid catalytic cracking (fcc) process by coke oxidation with metal oxides
US-2022056357-A1 · Feb 24, 2022 · US
Process for the production of syngas
US-2022024761-A1 · Jan 27, 2022 · US
Chemical looping syngas production from carbonaceous fuels
US-11111143-B2 · Sep 7, 2021 · US
Synthetic fuels and chemicals production with in-situ CO2 capture
US-10865346-B2 · Dec 15, 2020 · US
System and method for reducing emissions in a chemical looping combustion system
US-10782016-B2 · Sep 22, 2020 · US
Chemical looping reactor with shared partial reactor vessels
US-10576442-B1 · Mar 3, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C10J3/725?
- CPC C10J3/725 is the Cooperative Patent Classification code for “Redox processes.”
- How many patents are filed under CPC C10J3/725 (Redox processes)?
- Our database includes 63 publications tagged with this CPC code.
- Is patent activity under CPC C10J3/725 growing?
- Publication counts under this code: 4 in 2024 vs 7 in 2025 (latest complete years).