Heat exchanger and method for manufacturing plate-shaped fins for heat exchanger
US-2018320978-A1 · Nov 8, 2018 · US
the conduits being straight
the conduits being straight · 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 | F28D1/053 |
| Official title | the conduits being straight |
| Display label | the conduits being straight |
| Total patents | 300 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 5 |
| 2017 | 22 |
| 2018 | 30 |
| 2019 | 29 |
| 2020 | 37 |
| 2021 | 35 |
| 2022 | 41 |
| 2023 | 22 |
| 2024 | 26 |
| 2025 | 31 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Extruded aluminum flat multi-hole tube and heat exchanger
US-2018313610-A1 · Nov 1, 2018 · US
Cell structures for use in heat exchangers, and methods of producing the same
US-2018297843-A1 · Oct 18, 2018 · US
Outdoor unit and indoor unit of air-conditioning apparatus
US-2018292096-A1 · Oct 11, 2018 · US
Fin-and-tube type heat exchanger and water heater including the same
US-10094589-B2 · Oct 9, 2018 · US
Multi-cross sectional fluid path condenser
US-2018238644-A1 · Aug 23, 2018 · US
Modulated water flow for once-through adiabatic cooling
US-2018231264-A1 · Aug 16, 2018 · US
Method and apparatus for modular air-to-air heat exchanger
US-2018224217-A1 · Aug 9, 2018 · US
Heat exchanger and method for manufacturing plate-shaped fins for heat exchanger
US-10041739-B2 · Aug 7, 2018 · US
Refrigerant evaporator
US-10030899-B2 · Jul 24, 2018 · US
Heat exchanger
US-2018202720-A1 · Jul 19, 2018 · US
Cold storage heat exchanger
US-9989315-B2 · Jun 5, 2018 · US
Heat exchanger and air conditioner
US-2018112897-A1 · Apr 26, 2018 · US
Heat exchanger and air-conditioning apparatus
US-2018100659-A1 · Apr 12, 2018 · US
Heat exchanger
US-9939208-B2 · Apr 10, 2018 · US
Heat exchanger assembly and outdoor unit of refrigerating apparatus
US-2017370597-A1 · Dec 28, 2017 · US
Swimming Pool Heat Exchangers And Associated Systems And Methods
US-2017356691-A1 · Dec 14, 2017 · US
Fin element for a heat exchanger
US-2017356697-A1 · Dec 14, 2017 · US
Turbulence member and heat exchanger using same, and water heater
US-2017343304-A1 · Nov 30, 2017 · US
Heat exchanger
US-2017314792-A1 · Nov 2, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28D1/053?
- CPC F28D1/053 is the Cooperative Patent Classification code for “the conduits being straight.”
- How many patents are filed under CPC F28D1/053 (the conduits being straight)?
- Our database includes 300 publications tagged with this CPC code.
- Is patent activity under CPC F28D1/053 growing?
- Publication counts under this code: 26 in 2024 vs 31 in 2025 (latest complete years).