Air-cooled steam condenser with improved second stage condenser
US-2025327623-A1 · Oct 23, 2025 · US
Auxiliary systems, arrangements, or devices
Auxiliary systems, arrangements, or devices · 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 | F28B9/00 |
| Official title | Auxiliary systems, arrangements, or devices |
| Display label | Auxiliary systems, arrangements, or devices |
| Total patents | 34 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 9 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 2 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compact heat exchanger with wavy fin turbulizer
US-2025123062-A1 · Apr 17, 2025 · US
Air-cooled steam condenser with improved second stage condenser
US-12241686-B2 · Mar 4, 2025 · US
Compact heat exchanger with wavy fin turbulizer
US-12215933-B2 · Feb 4, 2025 · US
Air-cooled condenser system
US-11604030-B2 · Mar 14, 2023 · US
Air-cooled steam condenser with improved second stage condenser
US-2023051944-A1 · Feb 16, 2023 · US
Compact heat exchanger with wavy fin turbulizer
US-2022170706-A1 · Jun 2, 2022 · US
Silencer
US-11315537-B2 · Apr 26, 2022 · US
Passive containment cooling system including multiple condensing stages and catalyst
US-11289214-B2 · Mar 29, 2022 · US
Method and apparatus for net zero-water power plant cooling and heat recovery
US-11199361-B2 · Dec 14, 2021 · US
Strong cooling direct air-cooled condenser radiating unit and air-cooled island
US-11175096-B2 · Nov 16, 2021 · US
Air cooled condenser (ACC) wind mitigation system
US-11067338-B2 · Jul 20, 2021 · US
Air-cooled condenser system
US-2020318909-A1 · Oct 8, 2020 · US
Passive containment cooling system including multiple condensing stages and catalyst, and method of making the same
US-2020279662-A1 · Sep 3, 2020 · US
Condenser and steam turbine plant provided with same
US-10760452-B2 · Sep 1, 2020 · US
Strong cooling direct air-cooled condenser radiating unit and air-cooled island
US-2020271385-A1 · Aug 27, 2020 · US
Method and apparatus for net zero-water power plant cooling and heat recovery
US-2020263927-A1 · Aug 20, 2020 · US
Seawater leakage detection device in feedwater system, method for detecting seawater leakage in feedwater system, and steam turbine plant
US-2020256218-A1 · Aug 13, 2020 · US
Ultra-compact, scalable, direct-contact vapor condensers using acoustic actuation
US-10670341-B2 · Jun 2, 2020 · US
Silencer
US-2020066244-A1 · Feb 27, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28B9/00?
- CPC F28B9/00 is the Cooperative Patent Classification code for “Auxiliary systems, arrangements, or devices.”
- How many patents are filed under CPC F28B9/00 (Auxiliary systems, arrangements, or devices)?
- Our database includes 34 publications tagged with this CPC code.
- Is patent activity under CPC F28B9/00 growing?
- Publication counts under this code: 2 in 2023 vs 4 in 2025 (latest complete years).