Apparatus and process to provide cooling water for ammonia and or hydrogen productions
US-2024207802-A1 · Jun 27, 2024 · US
of heating or cooling
of heating or cooling · 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 | C25B15/021 |
| Official title | of heating or cooling |
| Display label | of heating or cooling |
| Total patents | 352 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 12 |
| 2020 | 12 |
| 2021 | 16 |
| 2022 | 46 |
| 2023 | 69 |
| 2024 | 89 |
| 2025 | 74 |
| 2026 | 17 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compressor device and method for controlling compressor device
US-2024011174-A1 · Jan 11, 2024 · US
Method for operating apparatus for producing alkali hydroxide
US-2022056604-A1 · Feb 24, 2022 · US
Compression apparatus
US-2021399319-A1 · Dec 23, 2021 · US
Solid oxide electrochemical system having integrated heating means
US-2021391585-A1 · Dec 16, 2021 · US
Methods for hydrogen gas production through water electrolysis
US-11198941-B2 · Dec 14, 2021 · US
Electrochemical hydrogen pump and method for operating electrochemical hydrogen pump
US-11192064-B2 · Dec 7, 2021 · US
Process for the preparation of methanol
US-2021363079-A1 · Nov 25, 2021 · US
Gas generator
US-11180858-B2 · Nov 23, 2021 · US
Hydrogen-oxygen generation system and hydrogen-oxygen generation method
US-2021355590-A1 · Nov 18, 2021 · US
System for regulating the temperature and pressure of a high-temperature electrolyser (SOEC) reversibly operating as a fuel cell stack (SOFC)
US-11171342-B2 · Nov 9, 2021 · US
Hydrogen system
US-2021332488-A1 · Oct 28, 2021 · US
Fuel cell system and method
US-2021313607-A1 · Oct 7, 2021 · US
Renewable power to renewable natural gas using biological methane production
US-2021277343-A1 · Sep 9, 2021 · US
Novel modular electrocatalytic processing for simultaneous conversion of carbon dioxide and wet shale gas
US-2021262104-A1 · Aug 26, 2021 · US
Water electrolysis system and control method thereof
US-2021254227-A1 · Aug 19, 2021 · US
System for producing dihydrogen, and associated method
US-11060196-B2 · Jul 13, 2021 · US
A method for generating synthesis gas for use in hydroformylation reactions
US-2021130965-A1 · May 6, 2021 · US
Hydrogen system
US-2021071310-A1 · Mar 11, 2021 · US
Hydrogen Isotope Separation Methods and Systems
US-2020384411-A1 · Dec 10, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25B15/021?
- CPC C25B15/021 is the Cooperative Patent Classification code for “of heating or cooling.”
- How many patents are filed under CPC C25B15/021 (of heating or cooling)?
- Our database includes 352 publications tagged with this CPC code.
- Is patent activity under CPC C25B15/021 growing?
- Publication counts under this code: 89 in 2024 vs 74 in 2025 (latest complete years).