Premixing Apparatus
US-2022307691-A1 · Sep 29, 2022 · US
Arrangements of fans or blowers
Arrangements of fans or blowers · 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 | F23L5/02 |
| Official title | Arrangements of fans or blowers |
| Display label | Arrangements of fans or blowers |
| Total patents | 85 |
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 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 13 |
| 2019 | 10 |
| 2020 | 15 |
| 2021 | 8 |
| 2022 | 12 |
| 2023 | 10 |
| 2024 | 6 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Combustion device and water heating device
US-2022196284-A1 · Jun 23, 2022 · US
Vehicle heater
US-11345214-B2 · May 31, 2022 · US
Oil boiler
US-11255574-B2 · Feb 22, 2022 · US
Water heating apparatus
US-11226133-B2 · Jan 18, 2022 · US
Double inlet backward curved blower
US-2021310497-A1 · Oct 7, 2021 · US
Vehicle heater
US-11084354-B2 · Aug 10, 2021 · US
Purging device, robot system including the same and purging method
US-2021207805-A1 · Jul 8, 2021 · US
Double inlet backward curved blower
US-11041502-B2 · Jun 22, 2021 · US
Gas furnace
US-2021140632-A1 · May 13, 2021 · US
Gas furnace
US-2021140630-A1 · May 13, 2021 · US
Water heating device
US-2021131702-A1 · May 6, 2021 · US
Combustion apparatus
US-10928063-B2 · Feb 23, 2021 · US
Boosted gas burner assembly and a method of operating the same
US-10830451-B2 · Nov 10, 2020 · US
Oil boiler
US-2020348047-A1 · Nov 5, 2020 · US
Condensing combustion apparatus
US-10823455-B2 · Nov 3, 2020 · US
Heat source machine
US-10823452-B2 · Nov 3, 2020 · US
FRESH AIR INTAKE FOR LOW NOx EMISSION FURNACE
US-2020340668-A1 · Oct 29, 2020 · US
Blower assembly for gas-burning appliance
US-2020284429-A1 · Sep 10, 2020 · US
Cooktop appliance with a gas burner assembly
US-10753617-B2 · Aug 25, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23L5/02?
- CPC F23L5/02 is the Cooperative Patent Classification code for “Arrangements of fans or blowers.”
- How many patents are filed under CPC F23L5/02 (Arrangements of fans or blowers)?
- Our database includes 85 publications tagged with this CPC code.
- Is patent activity under CPC F23L5/02 growing?
- Publication counts under this code: 6 in 2024 vs 1 in 2025 (latest complete years).