A phase change material (pcm) module for a heat exchanger apparatus for temperature regulation in a building
US-2025297814-A1 · Sep 25, 2025 · US
for domestic or space-heating systems · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F28F21/066 |
| Official title | {for domestic or space-heating systems} |
| Display label | for domestic or space-heating systems |
| Total patents | 12 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025297814-A1 · Sep 25, 2025 · US
US-2024337409-A1 · Oct 10, 2024 · US
US-2024077215-A1 · Mar 7, 2024 · US
US-11788800-B2 · Oct 17, 2023 · US
US-2022178630-A1 · Jun 9, 2022 · US
US-11131464-B2 · Sep 28, 2021 · US
US-2020271395-A1 · Aug 27, 2020 · US
US-2019309959-A1 · Oct 10, 2019 · US
US-2019162429-A1 · May 30, 2019 · US
US-9958212-B2 · May 1, 2018 · US
US-2017010047-A1 · Jan 12, 2017 · US
US-2016252269-A1 · Sep 1, 2016 · US