Heat transfer device with nested layers of helical fluid channels
US-12281853-B2 · Apr 22, 2025 · US
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Hollow screw conveyors
Hollow screw conveyors · 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 | F28F5/06 |
| Official title | Hollow screw conveyors |
| Display label | Hollow screw conveyors |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat transfer device with nested layers of helical fluid channels
US-2024295363-A1 · Sep 5, 2024 · US
Heat transfer device with nested layers of helical fluid channels
US-11927402-B2 · Mar 12, 2024 · US
Heat transfer device with nested layers of helical fluid channels
US-2023015392-A1 · Jan 19, 2023 · US
Reaction device with heat exchanger and use thereof
US-2022126250-A1 · Apr 28, 2022 · US
Reaction device with heat exchanger and use thereof
US-11247188-B2 · Feb 15, 2022 · US
Cooled conveyor for decoating systems
US-10883774-B2 · Jan 5, 2021 · US
Heating roller and film production method
US-10563299-B2 · Feb 18, 2020 · US
Reaction device with heat exchanger and use thereof
US-2020009524-A1 · Jan 9, 2020 · US
Cooled conveyor for decoating systems
US-2018340745-A1 · Nov 29, 2018 · US
Waste heat recovery apparatus having hollow screw shaft and method for the same
US-9891010-B2 · Feb 13, 2018 · US
Heating roller and film production method
US-2017145559-A1 · May 25, 2017 · US
Waste heat recovery apparatus and method for the same
US-2016045946-A1 · Feb 18, 2016 · US