Maritime vehicle with surface array of transducers controlling drag
US-11794881-B2 · Oct 24, 2023 · US
by generating shock waves
by generating shock waves · 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 | B64C23/04 |
| Official title | by generating shock waves |
| Display label | by generating shock waves |
| Total patents | 71 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 5 |
| 2019 | 7 |
| 2020 | 10 |
| 2021 | 9 |
| 2022 | 11 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods of active control of surface drag using selective wave generation
US-11744157-B2 · Aug 29, 2023 · US
Flow control method and rotary wing unit
US-11718388-B2 · Aug 8, 2023 · US
Method of designing an aircraft shape of a supersonic aircraft, method of producing a supersonic aircraft, and supersonic aircraft
US-2023130658-A1 · Apr 27, 2023 · US
Shock wave suppression device and aircraft
US-11530029-B2 · Dec 20, 2022 · US
Vehicle with Surface Array of Transducers Controlling Drag
US-2022371725-A1 · Nov 24, 2022 · US
Method of reducing low energy flow in an isolator of a flight vehicle air breathing engine
US-11473500-B2 · Oct 18, 2022 · US
Method of and Transonically Operating Aircraft having Devices For Suppressing Aeroelastic Instabilities
US-2022324553-A1 · Oct 13, 2022 · US
Vehicle with surface array of transducers controlling drag
US-11453482-B2 · Sep 27, 2022 · US
Supersonic aircraft and method of reducing sonic booms
US-11420759-B2 · Aug 23, 2022 · US
Flow Body For An Aircraft With A Selectively Activatable Shock Bump
US-2022258853-A1 · Aug 18, 2022 · US
Aircraft portion with reduced wave drag
US-2022111947-A1 · Apr 14, 2022 · US
Aircraft portion with reduced wave drag
US-11267552-B2 · Mar 8, 2022 · US
Flow control method and rotary wing unit
US-2022041269-A1 · Feb 10, 2022 · US
Arrangement and system for mechanically changing a surface
US-11220328-B2 · Jan 11, 2022 · US
Vehicle with Surface Array of Transducers Controlling Drag
US-2021387719-A1 · Dec 16, 2021 · US
Rotating detonation propulsion system
US-2021372624-A1 · Dec 2, 2021 · US
Rotating detonation propulsion system
US-11105511-B2 · Aug 31, 2021 · US
Shock wave suppression device and aircraft
US-2021253226-A1 · Aug 19, 2021 · US
Method of reducing low energy flow in an isolator of a flight vehicle air breathing engine
US-2021246850-A1 · Aug 12, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C23/04?
- CPC B64C23/04 is the Cooperative Patent Classification code for “by generating shock waves.”
- How many patents are filed under CPC B64C23/04 (by generating shock waves)?
- Our database includes 71 publications tagged with this CPC code.
- Is patent activity under CPC B64C23/04 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).