Ducts for laminar flow control systems
US-2019092456-A1 · Mar 28, 2019 · US
by influencing the boundary layer
by influencing the boundary layer · 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 | F15D1/12 |
| Official title | by influencing the boundary layer |
| Display label | by influencing the boundary layer |
| Total patents | 224 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 16 |
| 2017 | 18 |
| 2018 | 15 |
| 2019 | 29 |
| 2020 | 27 |
| 2021 | 27 |
| 2022 | 27 |
| 2023 | 17 |
| 2024 | 14 |
| 2025 | 23 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Device and method for controlling fluid flow over an optical instrument
US-10174772-B2 · Jan 8, 2019 · US
Tailgate-mounted air drag reduction mechanism
US-2018370581-A1 · Dec 27, 2018 · US
Vortex-generator device
US-2018343935-A1 · Dec 6, 2018 · US
Thermally Controlled Active Flow Control System
US-2018346101-A1 · Dec 6, 2018 · US
Thermally controlled active flow control system
US-10086927-B2 · Oct 2, 2018 · US
Systems, methods, and apparatuses for reducing hydrodynamic frictional drag
US-2018229808-A1 · Aug 16, 2018 · US
Swirling Jet Actuator for Control of Separated and Mixing Flows
US-2018209452-A1 · Jul 26, 2018 · US
Device and method for controlling fluid flow over an optical instrument
US-2018172040-A1 · Jun 21, 2018 · US
Perforated surface for suction-type laminar flow control
US-10000277-B2 · Jun 19, 2018 · US
Method of preventing separation of a fluid flow and flow body system
US-2018162521-A1 · Jun 14, 2018 · US
Swirling jet actuator for control of separated and mixing flows
US-9989078-B2 · Jun 5, 2018 · US
Actuators for flow control at surfaces of aerodynamic profiles
US-2018149178-A1 · May 31, 2018 · 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-9976580-B2 · May 22, 2018 · US
Actuatable microstructures and methods of making the same
US-9932481-B2 · Apr 3, 2018 · US
Motor Vehicle
US-2018038396-A1 · Feb 8, 2018 · US
Method and apparatus of plasma flow control for drag reduction
US-2018031013-A1 · Feb 1, 2018 · US
Active control of vortices for skin friction reduction
US-2017370387-A1 · Dec 28, 2017 · US
Polymeric interlayers and multiple layer panels made therefrom exhibiting enhanced properties and performance
US-2017361578-A1 · Dec 21, 2017 · US
Three dimensional woven lattices for drag reduction and turbulence reduction
US-2017356478-A1 · Dec 14, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F15D1/12?
- CPC F15D1/12 is the Cooperative Patent Classification code for “by influencing the boundary layer.”
- How many patents are filed under CPC F15D1/12 (by influencing the boundary layer)?
- Our database includes 224 publications tagged with this CPC code.
- Is patent activity under CPC F15D1/12 growing?
- Publication counts under this code: 14 in 2024 vs 23 in 2025 (latest complete years).