Gas purification apparatus and method
US-11931687-B2 · Mar 19, 2024 · US
Mixtures of hydrogen sulfide and carbon dioxide
Mixtures of hydrogen sulfide and carbon dioxide · 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 | B01D53/526 |
| Official title | {Mixtures of hydrogen sulfide and carbon dioxide} |
| Display label | Mixtures of hydrogen sulfide and carbon dioxide |
| Total patents | 139 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 9 |
| 2017 | 11 |
| 2018 | 9 |
| 2019 | 10 |
| 2020 | 9 |
| 2021 | 21 |
| 2022 | 9 |
| 2023 | 12 |
| 2024 | 14 |
| 2025 | 19 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Absorbent liquid for CO2 and/or H2S, and apparatus and method using same
US-10857502-B2 · Dec 8, 2020 · US
Acid gas removal apparatus and acid gas removal method
US-2020368674-A1 · Nov 26, 2020 · US
Method and system for upgrading biogas
US-10760024-B2 · Sep 1, 2020 · US
Polyamines, synthesis process thereof and use of same for the selective elimination of H2S from a gaseous effluent comprising CO2
US-10710021-B2 · Jul 14, 2020 · US
Absorbent for selective removal of hydrogen sulfide from a fluid stream
US-2019388829-A1 · Dec 26, 2019 · US
Coalescer for co-current contactors
US-10486100-B1 · Nov 26, 2019 · US
Absorbent for selective removal of hydrogen sulfide from a fluid stream
US-10464013-B2 · Nov 5, 2019 · US
System for flare gas recovery using gas sweetening process
US-2019314755-A1 · Oct 17, 2019 · US
Compositions and methods for recovery of stranded gas and oil
US-2019264169-A1 · Aug 29, 2019 · US
Coalescer for co-current contractors
US-10391442-B2 · Aug 27, 2019 · US
Compositions and methods for recovery of stranded gas and oil
US-10273446-B2 · Apr 30, 2019 · US
Separations with ionic liquid solvents
US-10227274-B2 · Mar 12, 2019 · US
System for flare gas recovery using gas sweetening process
US-2019022580-A1 · Jan 24, 2019 · US
Method and device for stripping a gas from a gas mixture using a venturi ejector
US-10173165-B2 · Jan 8, 2019 · US
Novel polyamines, synthesis process thereof and use of same for the selective elimination of h2s from a gaseous effluent comprising co2
US-2018369743-A1 · Dec 27, 2018 · US
Complex amine absorbent, and device and method for removing one or both of CO2 and H2S
US-10137407-B2 · Nov 27, 2018 · US
Reclaiming device, method, and recovery unit of CO2, H2S, or both of CO2 and H2S
US-10137415-B2 · Nov 27, 2018 · US
Separations with ionic liquid solvents
US-10131596-B2 · Nov 20, 2018 · US
Process and apparatus for treating a sour synthesis gas
US-2018327263-A1 · Nov 15, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D53/526?
- CPC B01D53/526 is the Cooperative Patent Classification code for “Mixtures of hydrogen sulfide and carbon dioxide.”
- How many patents are filed under CPC B01D53/526 (Mixtures of hydrogen sulfide and carbon dioxide)?
- Our database includes 139 publications tagged with this CPC code.
- Is patent activity under CPC B01D53/526 growing?
- Publication counts under this code: 14 in 2024 vs 19 in 2025 (latest complete years).