ClassID:

146563

F15D1/0035 - CPC Classification

Classification description:

Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions in the form of riblets

Sub-classes:
Recent Application in this class:
#1
20260055785
2026-02-26

DEVICE TO REDUCE TURBULENT FLOW SKIN FRICTION USING CARBON DIOXIDE, RIBLETS, AND SUCTION HOLES

#2
20260022719
2026-01-22

SURFACE COATING FOR REDUCTION OF AERODYNAMIC NOISE AND VIBRATIONS

#3
20250376998
2025-12-11

A DEVICE TO REDUCE TURBULENT FLOW SKIN FRICTION USING CARBON DIOXIDE, RIBLETS, AND SUCTION HOLES

#4
20240093705
2024-03-21

PHONONIC SUBSURFACE FOR CONTROLLING HYPERSONIC FLOW

#5
20230213000
2023-07-06

Turbine engine with a flow splitter having a profile with inclined serrations

#6
20230084338
2023-03-16

HYDROFOIL CAVITATING FLOW CONTROL STRUCTURE

#7
20230054708
2023-02-23

METHOD FOR PRODUCING AN OBJECT PROVIDED WITH RIBLETS ON AND/OR IN THE SURFACE, AND OBJECT PRODUCED THEREBY

#8
20230024245
2023-01-26

CONTAMINATION PROTECTION FOR RIBLET FILMS

#9
20230010729
2023-01-12

Apparatus for attaching aerodynamically functional films and use thereof

#10
20220040908
2022-02-10

RIBLET FILM AND METHOD FOR THE PRODUCTION THEREOF

#11
20220033068
2022-02-03

SELF-ADHERING FILM WITH AERODYNAMIC PERFORMANCE

#12
20210231142
2021-07-29

Submerged periodic riblets

#13
20210102564
2021-04-08

Surface coating for reduction of aerodynamic noise and vibrations

#14
20210095703
2021-04-01

Deflector disc of disc tube membrane module

#15
20210078696
2021-03-18

IRREGULAR SURFACE TEXTURE FOR REDUCING FLOW DRAG

#16
20200400069
2020-12-24

Turbine engine with a flow splitter having a profile with inclined serrations

#17
20200132094
2020-04-30

Vortex generators positioned in flowtubes to promote boundary layer adherence of flow through a flowtube of a meter

#18
20200072258
2020-03-05

SURFACE COATING FOR REDUCTION OF AERODYNAMIC NOISE AND VIBRATIONS

#19
20190323356
2019-10-24

COMPRESSOR BLADE SURFACE PATTERNING

#20
20190210714
2019-07-11

AERODYNAMIC ELEMENT OF AN AIRCRAFT, COMPRISING A SET OF PROTRUDING ELEMENTS

#21
20190128296
2019-05-02

Method of applying riblets to an aerodynamic surface

#22
20190055969
2019-02-21

Methods and Apparatus for Improving Sound Within an Acoustical Boundary Laer

#23
20190055968
2019-02-21

Methods and apparatus for improving sound within an acoustical boundary layer

#24
20190009297
2019-01-10

Applicator

#25
20180283180
2018-10-04

Turbine engine airfoil with a modified leading edge

#26
20180099312
2018-04-12

Method of coating interior surfaces with riblets

#27
20170095831
2017-04-06

Applicator

#28
20160318603
2016-11-03

Rigid tipped riblets

#29
20160297515
2016-10-13

Amorphous metal riblets

#30
20160017902
2016-01-21

Fibrillar structures to reduce viscous drag on aerodynamic and hydrodynamic wall surfaces

#31
20150053289
2015-02-26

Structural component with a riblet surface

#32
20140332631
2014-11-13

AMORPHOUS METAL RIBLETS

#33
20140248469
2014-09-04

Rigid tipped riblets

#34
20140099475
2014-04-10

Shape memory riblets

#35
20130156595
2013-06-20

Riblet structure on a flow surface and method

#36
20110180146
2011-07-28

Microvanes for aircraft aft body drag reduction

#37
20100187361
2010-07-29

Amorphous metal riblets

#38
20100187360
2010-07-29

Shape memory riblets

#39
20100187359
2010-07-29

Rigid tipped riblets

#40
20080268258
2008-10-30

Turbine blade protective barrier

#41
20050061221
2005-03-24

Superhydrophobic coating

#42
20050003146
2005-01-06

Body with improved surface properties

#43
19106684
2025-12-09

Device to reduce turbulent flow skin friction using carbon dioxide, riblets, and suction holes

#44
16923344
2023-06-13

Flow-following apparatus and methods of use