Absorption Refrigeration Cycle and Compression-Absorption Refrigeration Cycle
US-2024263061-A1 · Aug 8, 2024 · US
without inert gas ({F25B15/004, F25B15/006, F25B15/008}, F25B15/12, F25B15/14, F25B15/16 take precedence)
without inert gas ({F25B15/004, F25B15/006, F25B15/008}, F25B15/12, F25B15/14, F25B15/16 take precedence) · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F25B15/02 |
| Official title | without inert gas ({F25B15/004, F25B15/006, F25B15/008}, F25B15/12, F25B15/14, F25B15/16 take precedence) |
| Display label | without inert gas ({F25B15/004, F25B15/006, F25B15/008}, F25B15/12, F25B15/14, F25B15/16 take precedence) |
| Total patents | 64 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 10 |
| 2018 | 8 |
| 2019 | 7 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compact membrane-based absorption heat pump
US-12000630-B2 · Jun 4, 2024 · US
Cooling machine
US-11940184-B2 · Mar 26, 2024 · US
Refrigeration cycle apparatus
US-2023417460-A1 · Dec 28, 2023 · US
Air conditioner based on molecular sieve
US-11796235-B2 · Oct 24, 2023 · US
Cooling machine
US-11768015-B2 · Sep 26, 2023 · US
Liquid ammonia, sodium nitrate and lithium bromide absorption refrigeration system
US-11609028-B2 · Mar 21, 2023 · US
Compact membrane-based absorption heat pump
US-2023069597-A1 · Mar 2, 2023 · US
Air conditioner based on molecular sieve
US-2022381489-A1 · Dec 1, 2022 · US
Method to change fluid temperature using a thermally driven control unit
US-11473817-B2 · Oct 18, 2022 · US
Absorption cycle apparatus and related method
US-11466189-B2 · Oct 11, 2022 · US
Liquid ammonia, sodium nitrate and lithium bromide diffusion refrigeration system
US-2022057117-A1 · Feb 24, 2022 · US
Liquid ammonia, sodium nitrate and lithium bromide absorption refrigeration system
US-2022057116-A1 · Feb 24, 2022 · US
Liquid desiccant based dehumidification and cooling system
US-11123682-B2 · Sep 21, 2021 · US
Liquid desiccant based dehumidification and cooling system
US-11090605-B2 · Aug 17, 2021 · US
Cooling machine
US-2021215404-A1 · Jul 15, 2021 · US
Cooling machine
US-2021215405-A1 · Jul 15, 2021 · US
Ionic liquid-based absorption cooling system with high coefficient of performance
US-10808970-B2 · Oct 20, 2020 · US
Absorption cycle apparatus and related method
US-2020172782-A1 · Jun 4, 2020 · US
Microwave assisted hybrid solar vapor absorption refrigeration systems
US-10648712-B1 · May 12, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25B15/02?
- CPC F25B15/02 is the Cooperative Patent Classification code for “without inert gas ({F25B15/004, F25B15/006, F25B15/008}, F25B15/12, F25B15/14, F25B15/16 take precedence).”
- How many patents are filed under CPC F25B15/02 (without inert gas ({F25B15/004, F25B15/006, F25B15/008}, F25B15/12, F25B15/14, F25B15/16 take precedence))?
- Our database includes 64 publications tagged with this CPC code.
- Is patent activity under CPC F25B15/02 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).