Heat supply system coupling passive phase change energy storage sunlight room and air source heat pump
US-12130022-B2 · Oct 29, 2024 · US
Passive solar heat collectors, e.g. operated without external energy source
Passive solar heat collectors, e.g. operated without external energy source · 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 | F24S20/61 |
| Official title | Passive solar heat collectors, e.g. operated without external energy source |
| Display label | Passive solar heat collectors, e.g. operated without external energy source |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 6 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat supply system coupling passive phase change energy storage sunlight room and air source heat pump
US-2024263806-A1 · Aug 8, 2024 · US
Multi-source sustainable-renewable energy harvester
US-11698058-B1 · Jul 11, 2023 · US
Photothermal trap
US-11441817-B2 · Sep 13, 2022 · US
Photothermal trap
US-2021080150-A1 · Mar 18, 2021 · US
Critical dimension shrink through selective metal growth on metal hardmask sidewalls
US-10168075-B2 · Jan 1, 2019 · US
Unitary assembly for an architectural fenestration, providing dynamic solar heat gain control
US-10072457-B2 · Sep 11, 2018 · US
Critical dimension shrink through selective metal growth on metal hardmask sidewalls
US-2018223522-A1 · Aug 9, 2018 · US
Inflatable, free-standing solar updraft tower with optimal geometry and active control
US-10006443-B1 · Jun 26, 2018 · US
Critical dimension shrink through selective metal growth on metal hardmask sidewalls
US-9953916-B2 · Apr 24, 2018 · US
Critical dimension shrink through selective metal growth on metal hardmask sidewalls
US-9716038-B2 · Jul 25, 2017 · US
Critical dimension shrink through selective metal growth on metal hardmask sidewalls
US-2017148730-A1 · May 25, 2017 · US
Zero emission dialysis clinic
US-9642959-B2 · May 9, 2017 · US
Critical dimension shrink through selective metal growth on metal hardmask sidewalls
US-9595473-B2 · Mar 14, 2017 · US
Unitary Assembly for an Architectural Fenestration, Providing Dynamic Solar Heat Gain Control
US-2016348425-A1 · Dec 1, 2016 · US
Critical dimension shrink through selective metal growth on metal hardmask sidewalls
US-2016351448-A1 · Dec 1, 2016 · US
Critical dimension shrink through selective metal growth on metal hardmask sidewalls
US-2016351447-A1 · Dec 1, 2016 · US
Unitary assembly for an architectural fenestration, providing dynamic solar heat gain control
US-9416587-B2 · Aug 16, 2016 · US
Reactor vessels with pressure and heat transfer features for producing hydrogen-based fuels and structural elements, and associated systems and methods
US-9395081-B2 · Jul 19, 2016 · US
Oxygenated fuel
US-9297530-B2 · Mar 29, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24S20/61?
- CPC F24S20/61 is the Cooperative Patent Classification code for “Passive solar heat collectors, e.g. operated without external energy source.”
- How many patents are filed under CPC F24S20/61 (Passive solar heat collectors, e.g. operated without external energy source)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC F24S20/61 growing?
- Publication counts under this code: 1 in 2023 vs 2 in 2024 (latest complete years).