Process for steam reforming natural gas, having two combustion chambers generating hot fumes supplying the necessary heat to the process and connected in series or in parallel
US-2017369313-A1 · Dec 28, 2017 · US
Purification by adsorption on solids
Purification by adsorption on solids · 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 | C01B2203/042 |
| Official title | Purification by adsorption on solids |
| Display label | Purification by adsorption on solids |
| Total patents | 422 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 19 |
| 2016 | 29 |
| 2017 | 29 |
| 2018 | 38 |
| 2019 | 41 |
| 2020 | 34 |
| 2021 | 31 |
| 2022 | 52 |
| 2023 | 50 |
| 2024 | 46 |
| 2025 | 47 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Sour pressure swing adsorption process
US-9808755-B2 · Nov 7, 2017 · US
System for syngas clean-up
US-9783417-B2 · Oct 10, 2017 · US
Gas purifier
US-9694319-B2 · Jul 4, 2017 · US
Method for oxygen removal from hydrogen using adsorbent
US-2017174514-A1 · Jun 22, 2017 · US
Method for hydrogen production by pressure swing adsorption
US-9675927-B2 · Jun 13, 2017 · US
Method for syngas clean-up of semi-volatile organic compounds with solids removal
US-2017152139-A1 · Jun 1, 2017 · US
Method for processing a gas mixture
US-2017107102-A1 · Apr 20, 2017 · US
Process for producing hydrogen
US-9586819-B2 · Mar 7, 2017 · US
Method for syngas clean-up of semi-volatile organic compounds
US-9580315-B2 · Feb 28, 2017 · US
Method and system for producing hydrogen using an oxygen transport membrane based reforming system with secondary reforming
US-9556027-B2 · Jan 31, 2017 · US
Sour Pressure Swing Adsorption Process
US-2017021301-A1 · Jan 26, 2017 · US
Distributed hydrogen extraction system
US-9531024-B2 · Dec 27, 2016 · US
Process for catalytic reforming
US-9517933-B2 · Dec 13, 2016 · US
Method for operating a steam reforming plant
US-9512004-B2 · Dec 6, 2016 · US
Process for producing and purifying a synthesis gas
US-2016341472-A1 · Nov 24, 2016 · US
System and method for syngas clean-up
US-9499404-B2 · Nov 22, 2016 · US
Process for Producing Hydrogen
US-2016332876-A1 · Nov 17, 2016 · US
Method for preparation of ammonia gas and co2 for a urea synthesis process
US-2016318855-A1 · Nov 3, 2016 · US
Systems and methods for water gas shift with reduced steam consumption
US-2016311682-A1 · Oct 27, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B2203/042?
- CPC C01B2203/042 is the Cooperative Patent Classification code for “Purification by adsorption on solids.”
- How many patents are filed under CPC C01B2203/042 (Purification by adsorption on solids)?
- Our database includes 422 publications tagged with this CPC code.
- Is patent activity under CPC C01B2203/042 growing?
- Publication counts under this code: 46 in 2024 vs 47 in 2025 (latest complete years).