Heat exchanger and refrigeration cycle device
US-10156400-B2 · Dec 18, 2018 · US
the conduits being bent, e.g. in a serpentine or zig-zag
the conduits being bent, e.g. in a serpentine or zig-zag · 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 | F28D1/047 |
| Official title | the conduits being bent, e.g. in a serpentine or zig-zag |
| Display label | the conduits being bent, e.g. in a serpentine or zig-zag |
| Total patents | 237 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 13 |
| 2017 | 16 |
| 2018 | 33 |
| 2019 | 20 |
| 2020 | 28 |
| 2021 | 27 |
| 2022 | 24 |
| 2023 | 21 |
| 2024 | 22 |
| 2025 | 20 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Staggered Core Cooler for a Vehicle
US-2018328670-A1 · Nov 15, 2018 · US
Thermal control within an enclosure with circular cross-section
US-10130006-B2 · Nov 13, 2018 · US
Heat exchanger for embedded engine applications
US-10126062-B2 · Nov 13, 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 for residential hvac applications
US-2018299205-A1 · Oct 18, 2018 · US
Systems and methods for providing a phase change material panel and charging unit for cooling a cabinet of a merchandiser
US-2018266739-A1 · Sep 20, 2018 · US
Water-cooling radiator unit and water-cooling module using same
US-2018249592-A1 · Aug 30, 2018 · US
Water-cooling radiator unit and water-cooling module using same
US-10058007-B2 · Aug 21, 2018 · US
Multiply-wound Tube, Method of Manufacturing Multiply-wound Tube, and Device for Manufacturing Multiply-Wound Tube
US-2018231334-A1 · Aug 16, 2018 · US
Spiral conveyor thermal processing system
US-2018213801-A1 · Aug 2, 2018 · US
Method and system for radial tubular duct heat exchangers
US-10006369-B2 · Jun 26, 2018 · US
Defrosting device and refrigerator having the same
US-2018156523-A1 · Jun 7, 2018 · US
Heat exchanger and air conditioner
US-2018135900-A1 · May 17, 2018 · US
Ultra narrow channel ultra low refrigerant charge evaporative condenser
US-2018128525-A1 · May 10, 2018 · US
Indirect heat exchanger
US-2018100701-A1 · Apr 12, 2018 · US
Indirect heat exchanger
US-2018100700-A1 · Apr 12, 2018 · US
Water-cooling radiator unit and water-cooling module using same
US-2018092249-A1 · Mar 29, 2018 · US
Integral drain assembly for a heat exchanger and method of forming
US-2018058779-A1 · Mar 1, 2018 · US
Variable geometry heat exchanger apparatus
US-9903274-B2 · Feb 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28D1/047?
- CPC F28D1/047 is the Cooperative Patent Classification code for “the conduits being bent, e.g. in a serpentine or zig-zag.”
- How many patents are filed under CPC F28D1/047 (the conduits being bent, e.g. in a serpentine or zig-zag)?
- Our database includes 237 publications tagged with this CPC code.
- Is patent activity under CPC F28D1/047 growing?
- Publication counts under this code: 22 in 2024 vs 20 in 2025 (latest complete years).