Hot oil media for sulfur export line and sulfur storage tank
US-12276379-B2 · Apr 15, 2025 · US
with parallel flow
with parallel flow · 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 | F28F2250/104 |
| Official title | with parallel flow |
| Display label | with parallel flow |
| Total patents | 35 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 5 |
| 2018 | 1 |
| 2019 | 6 |
| 2020 | 8 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Thermal device
US-2024230240-A9 · Jul 11, 2024 · US
Thermal device
US-2024133636-A1 · Apr 25, 2024 · US
Plastic film heat exchanger for low pressure and corrosive fluids
US-11808527-B2 · Nov 7, 2023 · US
Hot oil media for sulfur export line and sulfur storage tank
US-2023184390-A1 · Jun 15, 2023 · US
High pressure counterflow heat exchanger
US-11598583-B2 · Mar 7, 2023 · US
Plate for heat exchange arrangement and heat exchange arrangement
US-11448468-B2 · Sep 20, 2022 · US
Plastic Film Heat Exchanger For Low Pressure And Corrosive Fluids
US-2022282930-A1 · Sep 8, 2022 · US
Inverted heat exchanger device
US-11236953-B2 · Feb 1, 2022 · US
Heat exchanger
US-11215400-B2 · Jan 4, 2022 · US
Feedback control optimization of counter-flow simultaneous heat and mass exchange
US-11052326-B2 · Jul 6, 2021 · US
Inverted heat exchanger device
US-2021156624-A1 · May 27, 2021 · US
Heat exchanger
US-10907859-B2 · Feb 2, 2021 · US
Feedback Control Optimization of Counter-Flow Simultaneous Heat and Mass Exchange
US-2020384381-A1 · Dec 10, 2020 · US
Feedback control optimization of counter-flow simultaneous heat and mass exchange
US-10688409-B2 · Jun 23, 2020 · US
High pressure counterflow heat exchanger
US-2020191493-A1 · Jun 18, 2020 · US
Heat exchanger
US-2020166280-A1 · May 28, 2020 · US
Plate for heat exchange arrangement and heat exchange arrangement
US-2020132386-A1 · Apr 30, 2020 · US
Transformer with temperature-dependent cooling function
US-10629356-B2 · Apr 21, 2020 · US
High pressure counterflow heat exchanger
US-10619936-B2 · Apr 14, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28F2250/104?
- CPC F28F2250/104 is the Cooperative Patent Classification code for “with parallel flow.”
- How many patents are filed under CPC F28F2250/104 (with parallel flow)?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC F28F2250/104 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).