Process for producing carbon monoxide-containing streams
US-12391548-B2 · Aug 19, 2025 · US
At least two purification steps in parallel
At least two purification steps in parallel · 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 | C01B2203/145 |
| Official title | At least two purification steps in parallel |
| Display label | At least two purification steps in parallel |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 9 |
| 2019 | 4 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydrogen production system and method for producing hydrogen using the same
US-2025197214-A1 · Jun 19, 2025 · US
Process and apparatus for the separation of two gaseous streams each containing carbon monoxide, hydrogen and at least one acid gas
US-12109527-B2 · Oct 8, 2024 · US
Multiple furnace carbon capture through fuel gas separation and hydrogen combustion product electrolysis
US-2024109774-A1 · Apr 4, 2024 · US
Atr-based hydrogen process and plant
US-2024059563-A1 · Feb 22, 2024 · US
Fibrous substrates for hydrogen generation
US-11746007-B2 · Sep 5, 2023 · US
Process for producing carbon monoxide-containing streams
US-2023192486-A1 · Jun 22, 2023 · US
Process for purifying a synthesis gas
US-11485637-B2 · Nov 1, 2022 · US
Fibrous substrates for hydrogen generation
US-2022298013-A1 · Sep 22, 2022 · US
Gas reformer for producing hydrogen
US-2022267147-A1 · Aug 25, 2022 · US
Process and apparatus for the separation of two gaseous streams each containing carbon monoxide, hydrogen and at least one acid gas
US-2022233994-A1 · Jul 28, 2022 · US
Integrated system for oxygen recovery for deep space mission
US-10479739-B2 · Nov 19, 2019 · US
Process for the production of formaldehyde
US-10457634-B2 · Oct 29, 2019 · US
Methanol synthesis from synthesis gases with hydrogen deficiency
US-10364202-B2 · Jul 30, 2019 · US
Methanol synthesis from synthesis gases with hydrogen deficiency
US-2019077735-A1 · Mar 14, 2019 · US
Process For The Production Of Formaldehyde
US-2018362453-A1 · Dec 20, 2018 · US
Small scale modular gas to liquids plant for stranded remote gas
US-10144877-B2 · Dec 4, 2018 · US
Integrated system for oxygen recovery for deep space mission
US-2018319660-A1 · Nov 8, 2018 · US
Process for purifying synthesis gas by washing with aqueous solutions of amines
US-10118824-B2 · Nov 6, 2018 · US
Process for the production of formaldehyde
US-10087140-B2 · Oct 2, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B2203/145?
- CPC C01B2203/145 is the Cooperative Patent Classification code for “At least two purification steps in parallel.”
- How many patents are filed under CPC C01B2203/145 (At least two purification steps in parallel)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC C01B2203/145 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).