Heat exchanger assembly for an hvac system
US-2020370841-A1 · Nov 26, 2020 · US
the conduits having a non-circular cross-section
the conduits having a non-circular cross-section · 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 | F28D1/0478 |
| Official title | {the conduits having a non-circular cross-section} |
| Display label | the conduits having a non-circular cross-section |
| Total patents | 140 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 11 |
| 2017 | 5 |
| 2018 | 21 |
| 2019 | 10 |
| 2020 | 22 |
| 2021 | 11 |
| 2022 | 9 |
| 2023 | 12 |
| 2024 | 14 |
| 2025 | 14 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat exchanger unit and thermotechnical system
US-10801782-B2 · Oct 13, 2020 · US
Distributor, layered header, heat exchanger, and air-conditioning apparatus
US-2020309427-A1 · Oct 1, 2020 · US
Engine cooling assembly
US-2020182563-A1 · Jun 11, 2020 · US
Engine cooling system
US-2020182547-A1 · Jun 11, 2020 · US
Heat exchanger, air-conditioning apparatus including the same, and method of producing flat-tube U-bend
US-10677531-B2 · Jun 9, 2020 · US
Heat exchanger
US-10520258-B2 · Dec 31, 2019 · US
Heat exchanger
US-10514216-B2 · Dec 24, 2019 · US
Heat exchanger, air-conditioning apparatus equipped with heat exchanger, and method for producing heat exchanger
US-2019346208-A1 · Nov 14, 2019 · US
Heat transfer fin of fin-tube type heat exchanger
US-2019323784-A1 · Oct 24, 2019 · US
Varied geometry heat exchanger systems and methods
US-2019293364-A1 · Sep 26, 2019 · US
Air-Conditioning apparatus
US-10422566-B2 · Sep 24, 2019 · US
Heat Exchanger Fin
US-2019285359-A1 · Sep 19, 2019 · US
Indoor installation type combustion apparatus
US-10393376-B2 · Aug 27, 2019 · US
Vending machine
US-10365028-B2 · Jul 30, 2019 · US
Outdoor unit
US-2019032929-A1 · Jan 31, 2019 · US
Heat exchanger
US-2018372429-A1 · Dec 27, 2018 · US
Heat exchanger
US-2018363988-A1 · Dec 20, 2018 · US
Heat exchanger, air-conditioning apparatus including the same, and method of producing flat-tube u-bend
US-2018320977-A1 · Nov 8, 2018 · US
Heat exchanger
US-2018259265-A1 · Sep 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28D1/0478?
- CPC F28D1/0478 is the Cooperative Patent Classification code for “the conduits having a non-circular cross-section.”
- How many patents are filed under CPC F28D1/0478 (the conduits having a non-circular cross-section)?
- Our database includes 140 publications tagged with this CPC code.
- Is patent activity under CPC F28D1/0478 growing?
- Publication counts under this code: 14 in 2024 vs 14 in 2025 (latest complete years).