Methods and systems for controlling condensate when reducing oxygen content in biogas
US-2024001297-A1 · Jan 4, 2024 · US
Biogas
Biogas · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01D2258/05 |
| Official title | Biogas |
| Display label | Biogas |
| Total patents | 405 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 26 |
| 2016 | 18 |
| 2017 | 20 |
| 2018 | 41 |
| 2019 | 46 |
| 2020 | 41 |
| 2021 | 48 |
| 2022 | 40 |
| 2023 | 39 |
| 2024 | 43 |
| 2025 | 37 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel cell system having biogas desulfurizer assembly with manganese oxide desulfurizer material
US-9847543-B2 · Dec 19, 2017 · US
Method for removing hydrogen sulfide from an acid gas
US-2017335213-A1 · Nov 23, 2017 · US
System and method for processing greenhouse gases
US-9777628-B2 · Oct 3, 2017 · US
Metal organic frameworks for removal of compounds from a fluid
US-2017247622-A1 · Aug 31, 2017 · US
Gas purification method
US-9732297-B2 · Aug 15, 2017 · US
Epoxide-based hydrogen sulfide scavengers
US-9719030-B2 · Aug 1, 2017 · US
Multistage Membrane Separation and Purification Process and Apparatus for Separating High Purity Methane Gas
US-2017198227-A1 · Jul 13, 2017 · US
Absorbent solution containing a mixture of 1,2-bis-(2-dimethylaminoethoxy)-ethane and of 2-[2-(2-dimethylaminoethoxy)-ethoxy]-ethanol, and method of removing acid compounds from a gaseous effluent
US-2017197176-A1 · Jul 13, 2017 · US
Composite method of trapping carbon dioxide in gas mixture
US-2017173518-A1 · Jun 22, 2017 · US
Carbon dioxide adsorbents
US-2017173555-A1 · Jun 22, 2017 · US
Method for regenerating carbon dioxide absorbing liquid in carbon dioxide recovery method
US-9656211-B2 · May 23, 2017 · US
Method for absorbing CO2 from a gas mixture
US-9630140-B2 · Apr 25, 2017 · US
Absorbent solution based on beta-hydroxylated tertiary diamines and method of removing acid compounds from a gaseous effluent
US-2017100694-A1 · Apr 13, 2017 · US
Novel beta-hydroxylated tertiary diamines, a process for their synthesis and their use for eliminating acid compounds a gaseous effluent
US-2017081275-A1 · Mar 23, 2017 · US
Acid gas scrubbing composition
US-9555364-B2 · Jan 31, 2017 · US
Compositions and methods for recovery of stranded gas and oil
US-2016333307-A1 · Nov 17, 2016 · US
Absorbent tertiary monoalkanolamine solution belonging to the 3-alcoxypropylamine family, and method for removing acidic compounds contained in a gas effluent
US-9486737-B2 · Nov 8, 2016 · US
Fermentation hydrocarbon gas products separation via membrane
US-2016304416-A1 · Oct 20, 2016 · US
Process for removing acidic compounds from a gaseous effluent with an absorbent solution based on dihydroxyalkylamines bearing severe steric hindrance of the nitrogen atom
US-9468884-B2 · Oct 18, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2258/05?
- CPC B01D2258/05 is the Cooperative Patent Classification code for “Biogas.”
- How many patents are filed under CPC B01D2258/05 (Biogas)?
- Our database includes 405 publications tagged with this CPC code.
- Is patent activity under CPC B01D2258/05 growing?
- Publication counts under this code: 43 in 2024 vs 37 in 2025 (latest complete years).