Fan failure compensation
US-2021396237-A1 · Dec 23, 2021 · US
by changing flow path between different stages or between a plurality of compressors; Load distribution between compressors
by changing flow path between different stages or between a plurality of compressors; Load distribution between compressors · 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 | F04D27/005 |
| Official title | {by changing flow path between different stages or between a plurality of compressors; Load distribution between compressors} |
| Display label | by changing flow path between different stages or between a plurality of compressors; Load distribution between compressors |
| Total patents | 114 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 8 |
| 2017 | 12 |
| 2018 | 11 |
| 2019 | 11 |
| 2020 | 6 |
| 2021 | 10 |
| 2022 | 15 |
| 2023 | 11 |
| 2024 | 8 |
| 2025 | 8 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for controlling fans and a group of fans
US-11181118-B2 · Nov 23, 2021 · US
Industrial control system for distributed compressors
US-2021048016-A1 · Feb 18, 2021 · US
Blower/mulcher
US-10897858-B2 · Jan 26, 2021 · US
Gas Compressor and Control Method Therefor
US-2020400154-A1 · Dec 24, 2020 · US
Blower
US-10738788-B2 · Aug 11, 2020 · US
Air pump for an inflatable body
US-2020200180-A1 · Jun 25, 2020 · US
Air-conditioning unit for vehicle
US-2020156433-A1 · May 21, 2020 · US
Management of multiple fan modules
US-10533563-B2 · Jan 14, 2020 · US
Variable stage compressors
US-2020003455-A1 · Jan 2, 2020 · US
Electronic device and control method thereof
US-10517190-B2 · Dec 24, 2019 · US
Built-in electric air pumps for inflating objects
US-10443602-B2 · Oct 15, 2019 · US
Electric air pump system
US-2019301476-A1 · Oct 3, 2019 · US
Load sharing control for compressors in series
US-10400776-B2 · Sep 3, 2019 · US
Magnetically controlled valve and pump devices and methods of using the same
US-10400915-B2 · Sep 3, 2019 · US
Management of multiple fan modules
US-2019249678-A1 · Aug 15, 2019 · US
Fan characterization and control system
US-10345774-B2 · Jul 9, 2019 · US
Blower/mulcher
US-2019159409-A1 · May 30, 2019 · US
Method For Controlling Fans And A Group Of Fans
US-2019154045-A1 · May 23, 2019 · US
System and method for improving fan life in an information handling system
US-10212844-B2 · Feb 19, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D27/005?
- CPC F04D27/005 is the Cooperative Patent Classification code for “by changing flow path between different stages or between a plurality of compressors; Load distribution between compressors.”
- How many patents are filed under CPC F04D27/005 (by changing flow path between different stages or between a plurality of compressors; Load distribution between compressors)?
- Our database includes 114 publications tagged with this CPC code.
- Is patent activity under CPC F04D27/005 growing?
- Publication counts under this code: 8 in 2024 vs 8 in 2025 (latest complete years).