Continuous helical baffle heat exchanger
US-2023059671-A1 · Feb 23, 2023 · US
Oblique partitions
Oblique partitions · 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 | F28F2009/228 |
| Official title | {Oblique partitions} |
| Display label | Oblique partitions |
| Total patents | 78 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2017 | 8 |
| 2018 | 11 |
| 2019 | 6 |
| 2020 | 5 |
| 2021 | 12 |
| 2022 | 12 |
| 2023 | 9 |
| 2024 | 5 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Continuous helical baffle heat exchanger
US-2023021014-A1 · Jan 19, 2023 · US
Cooling device
US-11519644-B2 · Dec 6, 2022 · US
Continuous helical baffle heat exchanger
US-11486660-B2 · Nov 1, 2022 · US
Heat exchanger, refrigeration or heating system with such a heat exchanger
US-11421938-B2 · Aug 23, 2022 · US
Heat exchanger assembly
US-11415338-B2 · Aug 16, 2022 · US
Heat exchanger
US-11412642-B2 · Aug 9, 2022 · US
Multi-zone shell and tube heat exchanger
US-11353266-B2 · Jun 7, 2022 · US
Fluidized bed cooler with regional coordination enhancement
US-11338264-B2 · May 24, 2022 · US
Multi-zone shell and tube heat exchanger
US-2022099377-A1 · Mar 31, 2022 · US
Helically baffled heat exchanger
US-11287196-B2 · Mar 29, 2022 · US
Heat exchanger assembly
US-11280341-B2 · Mar 22, 2022 · US
Fluidized bed cooler with regional coordination enhancement
US-2022055004-A1 · Feb 24, 2022 · US
High pressure strippers for use in urea plants
US-2022008838-A1 · Jan 13, 2022 · US
Entrainment heat exchanger
US-11168951-B2 · Nov 9, 2021 · US
Multifurcating heat exchanger with independent baffles
US-2021293483-A1 · Sep 23, 2021 · US
Cooling device
US-2021262711-A1 · Aug 26, 2021 · US
Heat exchanger and heat exchange system including the same
US-2021190444-A1 · Jun 24, 2021 · US
Counter flow heat exchanger
US-11002487-B2 · May 11, 2021 · US
Heat exchanger, refrigeration or heating system with such a heat exchanger
US-2021095928-A1 · Apr 1, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28F2009/228?
- CPC F28F2009/228 is the Cooperative Patent Classification code for “Oblique partitions.”
- How many patents are filed under CPC F28F2009/228 (Oblique partitions)?
- Our database includes 78 publications tagged with this CPC code.
- Is patent activity under CPC F28F2009/228 growing?
- Publication counts under this code: 5 in 2024 vs 6 in 2025 (latest complete years).