Process for producing a synthesis gas
US-2017349435-A1 · Dec 7, 2017 · US
Purification by cryogenic separation
Purification by cryogenic 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 | C01B2203/046 |
| Official title | Purification by cryogenic separation |
| Display label | Purification by cryogenic separation |
| Total patents | 300 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 27 |
| 2017 | 19 |
| 2018 | 25 |
| 2019 | 21 |
| 2020 | 24 |
| 2021 | 25 |
| 2022 | 27 |
| 2023 | 32 |
| 2024 | 41 |
| 2025 | 31 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for the preparation of syngas
US-2017327374-A1 · Nov 16, 2017 · US
Fuel cell integration within a heat recovery steam generator
US-9819042-B2 · Nov 14, 2017 · US
Integrated power generation and chemical production using fuel cells
US-9786939-B2 · Oct 10, 2017 · US
Production of ammonia make-up syngas with cryogenic purification
US-2017253481-A1 · Sep 7, 2017 · US
Integration of molten carbonate fuel cells in fischer-tropsch synthesis
US-9650246-B2 · May 16, 2017 · US
Integration of molten carbonate fuel cells in Fischer-Tropsch synthesis
US-9647284-B2 · May 9, 2017 · US
Methods and systems for supplying hydrogen to a hydrocatalytic reaction
US-9644152-B2 · May 9, 2017 · US
Process and System for Making Cyclopentadiene and/or Dicyclopentadiene
US-2017121248-A1 · May 4, 2017 · US
Process and System for Making Cyclopentadiene and/or Dicyclopentadiene
US-2017121243-A1 · May 4, 2017 · US
Ethanol engine system
US-2017089306-A1 · Mar 30, 2017 · US
Method for producing hydrogen by reforming hydrocarbons using steam, combined with carbon dioxide capture and steam production
US-9580314-B2 · Feb 28, 2017 · US
Method of Producing Higher Value Hydrocarbons by Isothermal Oxidative Coupling of Methane
US-2016376208-A1 · Dec 29, 2016 · US
Method for Producing Hydrocarbons by Oxidative Coupling of Methane without Catalyst
US-2016376148-A1 · Dec 29, 2016 · US
Hydrocarbon upgrading
US-9523044-B2 · Dec 20, 2016 · US
Integration of molten carbonate fuel cells with fermentation processes
US-9520607-B2 · Dec 13, 2016 · US
Method for operating a steam reforming plant
US-9512004-B2 · Dec 6, 2016 · US
Integrated electrical power and chemical production using fuel cells
US-2016351931-A1 · Dec 1, 2016 · US
Process for producing and purifying a synthesis gas
US-2016341472-A1 · Nov 24, 2016 · US
Process for producing ammonia synthesis gas
US-2016311680-A1 · Oct 27, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B2203/046?
- CPC C01B2203/046 is the Cooperative Patent Classification code for “Purification by cryogenic separation.”
- How many patents are filed under CPC C01B2203/046 (Purification by cryogenic separation)?
- Our database includes 300 publications tagged with this CPC code.
- Is patent activity under CPC C01B2203/046 growing?
- Publication counts under this code: 41 in 2024 vs 31 in 2025 (latest complete years).