Supercharging device for a combustion engine
US-10502219-B2 · Dec 10, 2019 · US
with axial entry and discharge
with axial entry and discharge · 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 | F04D29/4253 |
| Official title | {with axial entry and discharge} |
| Display label | with axial entry and discharge |
| Total patents | 181 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 8 |
| 2018 | 21 |
| 2019 | 20 |
| 2020 | 16 |
| 2021 | 17 |
| 2022 | 19 |
| 2023 | 18 |
| 2024 | 28 |
| 2025 | 18 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fan assembly for robot cacuum cleaner and robot vacuum cleaner
US-2019368507-A1 · Dec 5, 2019 · US
Compressor housing for turbocharger and method for manufacturing the same
US-2019360500-A1 · Nov 28, 2019 · US
Fan system and arrangement of one or more such fan systems in a flow duct
US-2019353364-A1 · Nov 21, 2019 · US
Compressor structure for turbochargers
US-10458315-B2 · Oct 29, 2019 · US
Centrifugal fan with axial-flow wind
US-10458417-B2 · Oct 29, 2019 · US
Centrifugal-type blower device
US-2019309767-A1 · Oct 10, 2019 · US
Ceiling fan
US-2019242391-A1 · Aug 8, 2019 · US
Boost fan structure
US-10330120-B2 · Jun 25, 2019 · US
Temperature conditioning unit, temperature conditioning system, and vehicle
US-2019173140-A1 · Jun 6, 2019 · US
Blower and cleaner
US-2019159640-A1 · May 30, 2019 · US
Blower assembly for use in an air handling system and method for assembling the same
US-2019145657-A1 · May 16, 2019 · US
Blower for breathing apparatus
US-2019134329-A1 · May 9, 2019 · US
Electric fan and vacuum cleaner having same
US-2019125146-A1 · May 2, 2019 · US
Motor, blowing device, and cleaner
US-2019103783-A1 · Apr 4, 2019 · US
Diagonal fan
US-2019101122-A1 · Apr 4, 2019 · US
Blowing device and cleaner
US-2019021562-A1 · Jan 24, 2019 · US
Blowing device and cleaner
US-2019021561-A1 · Jan 24, 2019 · US
Boost fan structure
US-2019024676-A1 · Jan 24, 2019 · US
Fan and cleaner
US-2018335039-A1 · Nov 22, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D29/4253?
- CPC F04D29/4253 is the Cooperative Patent Classification code for “with axial entry and discharge.”
- How many patents are filed under CPC F04D29/4253 (with axial entry and discharge)?
- Our database includes 181 publications tagged with this CPC code.
- Is patent activity under CPC F04D29/4253 growing?
- Publication counts under this code: 28 in 2024 vs 18 in 2025 (latest complete years).