Condenser and refrigerator having same
US-10808986-B2 · Oct 20, 2020 · US
the conduits being helically or spirally coiled
the conduits being helically or spirally coiled · 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 | F28D1/0472 |
| Official title | {the conduits being helically or spirally coiled} |
| Display label | the conduits being helically or spirally coiled |
| Total patents | 128 |
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 | 11 |
| 2017 | 10 |
| 2018 | 13 |
| 2019 | 8 |
| 2020 | 21 |
| 2021 | 15 |
| 2022 | 16 |
| 2023 | 8 |
| 2024 | 9 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat exchanger and water heater including same
US-10794640-B2 · Oct 6, 2020 · US
Three-dimensional pulsating heat pipe, three-dimensional pulsating heat pipe assembly and heat dissipation module
US-10782079-B2 · Sep 22, 2020 · US
Tubular array heat exchanger
US-10782071-B2 · Sep 22, 2020 · US
Heat exchanger header with fractal geometry
US-2020284532-A1 · Sep 10, 2020 · US
Rectangular helical core geometry for heat exchanger
US-2020284518-A1 · Sep 10, 2020 · US
Engine cooling assembly
US-2020182563-A1 · Jun 11, 2020 · US
Engine cooling system
US-2020182547-A1 · Jun 11, 2020 · US
Fluid Flow Guide Insert for Heat Exchanger Tubes
US-2020049432-A1 · Feb 13, 2020 · US
Multi-coil heat exchanger
US-10514206-B2 · Dec 24, 2019 · US
Heat transfer unit for prefabricated vessel
US-2019368660-A1 · Dec 5, 2019 · US
Liquid dispenser
US-10473380-B2 · Nov 12, 2019 · US
Advanced Waste Heat Recovery in Industrial Fired-Heaters
US-2019331347-A1 · Oct 31, 2019 · US
Water purifier
US-2019276299-A1 · Sep 12, 2019 · US
Advanced waste heat recovery in industrial fired-heaters
US-2019257530-A1 · Aug 22, 2019 · US
Water-cooling radiator assembly
US-10378836-B2 · Aug 13, 2019 · US
Subsea assembly
US-2019072096-A1 · Mar 7, 2019 · US
Condenser and refrigerator having same
US-2018320951-A1 · Nov 8, 2018 · US
Heat exchanger coil for a recreational vehicle
US-10107520-B2 · Oct 23, 2018 · US
Tubular Array Heat Exchanger
US-2018283795-A1 · Oct 4, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28D1/0472?
- CPC F28D1/0472 is the Cooperative Patent Classification code for “the conduits being helically or spirally coiled.”
- How many patents are filed under CPC F28D1/0472 (the conduits being helically or spirally coiled)?
- Our database includes 128 publications tagged with this CPC code.
- Is patent activity under CPC F28D1/0472 growing?
- Publication counts under this code: 9 in 2024 vs 7 in 2025 (latest complete years).