Aerial vehicle fluid control system with multi-way flow regulator
US-2024076034-A1 · Mar 7, 2024 · US
for blowing
for blowing · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B64C21/04 |
| Official title | for blowing |
| Display label | for blowing |
| Total patents | 265 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 24 |
| 2016 | 20 |
| 2017 | 35 |
| 2018 | 24 |
| 2019 | 28 |
| 2020 | 33 |
| 2021 | 26 |
| 2022 | 21 |
| 2023 | 20 |
| 2024 | 16 |
| 2025 | 16 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Active flow control devices for aircraft wings
US-2017361918-A1 · Dec 21, 2017 · US
Distributed Compressor for Improved Integration and Performance of an Active Fluid Flow Control System
US-2017349268-A1 · Dec 7, 2017 · US
Actuator assembly
US-2017283043-A1 · Oct 5, 2017 · US
Active control flow system and method of cooling and providing active flow control
US-2017268409-A1 · Sep 21, 2017 · US
Active airflow system and method of reducing drag for aircraft
US-2017225772-A1 · Aug 10, 2017 · US
Plate member for reducing drag on a fairing of an aircraft
US-2017225771-A1 · Aug 10, 2017 · US
Plasma-assisted synthetic jets for active air flow control
US-9637224-B2 · May 2, 2017 · US
Ejector and airfoil configurations
US-2017057648-A1 · Mar 2, 2017 · US
Cancelling damping induced by drag in synthetic jets using performance enhancements
US-2017056913-A1 · Mar 2, 2017 · US
Fluidic propulsive system
US-2017057647-A1 · Mar 2, 2017 · US
Fluid actuator for influencing the flow along a flow surface, as well as blow-out device and flow body comprising a like fluid actuator
US-9573679-B2 · Feb 21, 2017 · US
Method and apparatus for robust lift generation
US-9573680-B2 · Feb 21, 2017 · US
Aircraft with a control device
US-9573678-B2 · Feb 21, 2017 · US
Methods and systems for rotary wing active flow control
US-2017029102-A1 · Feb 2, 2017 · US
Tile assembly
US-2017001715-A1 · Jan 5, 2017 · US
Method and apparatus for robust lift generation
US-2016375986-A1 · Dec 29, 2016 · US
System and method for enhancing the high-lift performance of an aircraft
US-2016375987-A1 · Dec 29, 2016 · US
Aerodynamic lift enhancing system for a flying automotive vehicle
US-2016368339-A1 · Dec 22, 2016 · US
Fluidic traverse actuator
US-9511849-B2 · Dec 6, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C21/04?
- CPC B64C21/04 is the Cooperative Patent Classification code for “for blowing.”
- How many patents are filed under CPC B64C21/04 (for blowing)?
- Our database includes 265 publications tagged with this CPC code.
- Is patent activity under CPC B64C21/04 growing?
- Publication counts under this code: 16 in 2024 vs 16 in 2025 (latest complete years).