Redox looping systems, methods and techniques for the production of hydrogen and carbon dioxide products
US-2026084961-A1 · Mar 26, 2026 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C01B3/344 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 54 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 8 |
| 2017 | 4 |
| 2018 | 10 |
| 2019 | 7 |
| 2020 | 3 |
| 2021 | 6 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods and Systems for Syngas Production
US-2025388464-A1 · Dec 25, 2025 · US
Low-carbon production method and system for cement clinker
US-2025197281-A1 · Jun 19, 2025 · US
Systems and methods for producing hydrogen gas using fluidized-bed reactor
US-2025197211-A1 · Jun 19, 2025 · US
Use of carbonaceous carrier material in bed reactors
US-2024391765-A1 · Nov 28, 2024 · US
Low carbon intensity hydrogen from methane
US-2024375950-A1 · Nov 14, 2024 · US
Systems, methods and materials for stable phase syngas generation
US-12134560-B2 · Nov 5, 2024 · US
Process to conduct a steam cracking reaction in a fluidized bed reactor
US-11911756-B2 · Feb 27, 2024 · US
Redox looping systems and methods for production of oxidized products
US-2023357005-A1 · Nov 9, 2023 · US
Process to conduct a steam cracking reaction in a fluidized bed reactor
US-2023294059-A1 · Sep 21, 2023 · US
Method of carbon dioxide-free hydrogen production from hydrocarbon decomposition over metal salts
US-11746008-B2 · Sep 5, 2023 · US
Transition metal carbide chemical looping reforming
US-11623862-B2 · Apr 11, 2023 · US
Process and means for decomposition of sour gas and hydrogen generation
US-11434132-B2 · Sep 6, 2022 · US
Systems, methods and materials for stable phase syngas generation
US-2022089438-A1 · Mar 24, 2022 · US
Chemical looping syngas production from carbonaceous fuels
US-11111143-B2 · Sep 7, 2021 · US
Reactor system with unequal reactor assembly operating pressures
US-11090624-B2 · Aug 17, 2021 · US
Method for producing synthesis gas
US-11078077-B2 · Aug 3, 2021 · US
Carbon capture, waste upgrade, and chemicals production using improved flexicoking
US-11014810-B1 · May 25, 2021 · US
Transition metal carbide chemical looping reforming
US-2021114871-A1 · Apr 22, 2021 · US
Process and means for decomposition of sour gas and hydrogen generation
US-2021078861-A1 · Mar 18, 2021 · US
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B3/344?
- CPC C01B3/344 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C01B3/344 (Chemistry & Metallurgy)?
- Our database includes 54 publications tagged with this CPC code.
- Is patent activity under CPC C01B3/344 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).