Absorbent for co2 or h2s, or both of co2 and h2s, and device and method for removing co2 or h2s, or both of co2 and h2s
US-2022193601-A1 · Jun 23, 2022 · US
Separation
Separation · 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 | C01B17/167 |
| Official title | {Separation} |
| Display label | Separation |
| Total patents | 74 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 9 |
| 2017 | 11 |
| 2018 | 9 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 6 |
| 2024 | 1 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Composite amine absorbent, and device and method for removing co2 or h2s, or both of co2 and h2s
US-2022096996-A1 · Mar 31, 2022 · US
Absorbent composition for the selective absorption of hydrogen sulfide
US-11071944-B2 · Jul 27, 2021 · US
Methods, products & uses relating to scavenging of acidic sulfide species
US-2021198129-A1 · Jul 1, 2021 · US
Methods, products & uses relating to scavenging of acidic sulfide species
US-2021179926-A1 · Jun 17, 2021 · US
Hydrogen sulfide-carbon dioxide membrane separation systems and processes
US-2020360853-A1 · Nov 19, 2020 · US
Two-stage adsorption process for Claus tail gas treatment
US-10662061-B1 · May 26, 2020 · US
Purification of carbon dioxide
US-10655912-B2 · May 19, 2020 · US
Enriched acid gas for sulfur recovery
US-10597297-B2 · Mar 24, 2020 · US
Enriched acid gas for sulfur recovery
US-2020048090-A1 · Feb 13, 2020 · US
Hydrogen sulfide scavengers for polymer treated asphalt
US-10544282-B2 · Jan 28, 2020 · US
Carbon Dioxide and Hydrogen Sulfide Recovery System using a Combination of Membranes and Low Temperature Cryogenic Separation Processes
US-2019358583-A1 · Nov 28, 2019 · US
Enriched acid gas for sulfur recovery
US-10479685-B2 · Nov 19, 2019 · US
Separating carbon dioxide and hydrogen sulfide from a natural gas stream using co-current contacting systems
US-10343107-B2 · Jul 9, 2019 · US
Purification of carbon dioxide
US-10254042-B2 · Apr 9, 2019 · US
Separations with ionic liquid solvents
US-10227274-B2 · Mar 12, 2019 · US
Enriched acid gas for sulfur recovery
US-2019055125-A1 · Feb 21, 2019 · US
Titanium-dioxide-based double-layer hollow material, preparation method thereof, and application thereof in photocatalytic treatment of hydrogen sulfide
US-10160659-B2 · Dec 25, 2018 · US
Treating raw natural gas
US-2018363978-A1 · Dec 20, 2018 · US
Reclaiming device, method, and recovery unit of CO2, H2S, or both of CO2 and H2S
US-10137415-B2 · Nov 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B17/167?
- CPC C01B17/167 is the Cooperative Patent Classification code for “Separation.”
- How many patents are filed under CPC C01B17/167 (Separation)?
- Our database includes 74 publications tagged with this CPC code.
- Is patent activity under CPC C01B17/167 growing?
- Publication counts under this code: 1 in 2024 vs 5 in 2025 (latest complete years).