Air treatment device
US-2022357054-A1 · Nov 10, 2022 · US
characterised by air supply means, e.g. fan casings, internal dampers or ducts (with secondary air induced by injector action of the primary air F24F1/01)
characterised by air supply means, e.g. fan casings, internal dampers or ducts (with secondary air induced by injector action of the primary air F24F1/01) · 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 | F24F1/028 |
| Official title | characterised by air supply means, e.g. fan casings, internal dampers or ducts (with secondary air induced by injector action of the primary air F24F1/01) |
| Display label | characterised by air supply means, e.g. fan casings, internal dampers or ducts (with secondary air induced by injector action of the primary air F24F1/01) |
| Total patents | 135 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2017 | 7 |
| 2019 | 6 |
| 2020 | 13 |
| 2021 | 16 |
| 2022 | 22 |
| 2023 | 20 |
| 2024 | 23 |
| 2025 | 23 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air conditioner
US-11486588-B2 · Nov 1, 2022 · US
Air conditioning appliance with make-up air module
US-11480347-B2 · Oct 25, 2022 · US
Air conditioning appliance and make-up air assembly
US-2022333791-A1 · Oct 20, 2022 · US
Air intake and exhaust assembly and packaged air conditioner
US-2022307702-A1 · Sep 29, 2022 · US
Auto-adjusting fan assembly for an air conditioning appliance
US-11448415-B2 · Sep 20, 2022 · US
Window air conditioner
US-2022275950-A1 · Sep 1, 2022 · US
Integral air conditioner device
US-2022268454-A1 · Aug 25, 2022 · US
Air conditioner
US-11408617-B2 · Aug 9, 2022 · US
Air guide grille, air inlet panel and air conditioner
US-11408636-B2 · Aug 9, 2022 · US
Compact, high-efficiency air handling unit for residential hvac systems
US-2022243739-A1 · Aug 4, 2022 · US
Air duct assembly and integrated air conditioner
US-2022214058-A1 · Jul 7, 2022 · US
Floor-type air-conditioning indoor unit and air conditioner
US-2022205651-A1 · Jun 30, 2022 · US
Mobile air conditioner
US-2022178556-A1 · Jun 9, 2022 · US
Rear panel assembly of window air conditioner, window air conditioner, and window air conditioner apparatus
US-2022113040-A1 · Apr 14, 2022 · US
Air conditioner
US-2022099311-A1 · Mar 31, 2022 · US
Air conditioner apparatus
US-11274836-B2 · Mar 15, 2022 · US
Air cleaner
US-2022010991-A1 · Jan 13, 2022 · US
Auto-adjusting fan assembly for an air conditioning appliance
US-2021404692-A1 · Dec 30, 2021 · US
Air conditioning appliance with make-up air module
US-2021404671-A1 · Dec 30, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24F1/028?
- CPC F24F1/028 is the Cooperative Patent Classification code for “characterised by air supply means, e.g. fan casings, internal dampers or ducts (with secondary air induced by injector action of the primary air F24F1/01).”
- How many patents are filed under CPC F24F1/028 (characterised by air supply means, e.g. fan casings, internal dampers or ducts (with secondary air induced by injector action of the primary air F24F1/01))?
- Our database includes 135 publications tagged with this CPC code.
- Is patent activity under CPC F24F1/028 growing?
- Publication counts under this code: 23 in 2024 vs 23 in 2025 (latest complete years).