Jet-type direct-fired preheating system
US-2026085374-A1 · Mar 26, 2026 · US
Fans
Fans · 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 | F27D2007/045 |
| Official title | {Fans} |
| Display label | Fans |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Shuttle kiln exhaust configuration
US-12392556-B2 · Aug 19, 2025 · US
Fan assembly
US-2025035125-A1 · Jan 30, 2025 · US
Fan assembly
US-2025027512-A1 · Jan 23, 2025 · US
Furnace for producing secondary battery cathode material and method for firing secondary battery cathode material
US-12117242-B2 · Oct 15, 2024 · US
Resin curing device and resin curing method
US-11975356-B2 · May 7, 2024 · US
Heat treatment apparatus and heat treatment method
US-11927394-B2 · Mar 12, 2024 · US
Device for diversion of quenching waste gas and diversion method thereof
US-11892237-B2 · Feb 6, 2024 · US
Laminar flow shrink oven
US-11549753-B2 · Jan 10, 2023 · US
Shuttle kiln exhaust configuration
US-2022397347-A1 · Dec 15, 2022 · US
Heat treatment apparatus and heat treatment method
US-2022307770-A1 · Sep 29, 2022 · US
Furnace for producing secondary battery cathode material and method for firing secondary battery cathode material
US-2022065534-A1 · Mar 3, 2022 · US
Oven for carrying out heat treatments of friction elements, in particular brake pads, and associated method
US-11204199-B2 · Dec 21, 2021 · US
Resin curing device and resin curing method
US-2021291221-A1 · Sep 23, 2021 · US
Device for diversion of quenching waste gas and diversion method thereof
US-2021207889-A1 · Jul 8, 2021 · US
Oven for carrying out heat treatments of friction elements, in particular brake pads, and associated method
US-2021207887-A1 · Jul 8, 2021 · US
Heating furnace for heating annular component
US-10718570-B2 · Jul 21, 2020 · US
Heat treatment device
US-10690416-B2 · Jun 23, 2020 · US
Multi-chamber heat treatment device
US-10488115-B2 · Nov 26, 2019 · US
Heating device for annular component and annular cavity thereof
US-10378822-B2 · Aug 13, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F27D2007/045?
- CPC F27D2007/045 is the Cooperative Patent Classification code for “Fans.”
- How many patents are filed under CPC F27D2007/045 (Fans)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC F27D2007/045 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).