ClassID:

71958

B64C11/26 - CPC Classification

Classification description:

Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft; Blades; Constructional features Fabricated blades

Recent Application in this class:
#1
20260139601
2026-05-21

VARIABLE PITCH VANE FOR A TURBOMACHINE FAN HAVING A STIFFNESS GRADIENT IN THE ROOT

#2
20260117663
2026-04-30

TURBINE ENGINE WITH COMPOSITE AIRFOIL HAVING A NON-METALLIC LEADING EDGE PROTECTIVE WRAP

#3
20260116529
2026-04-30

VARIABLE-PITCH VANE MADE OF COMPOSITE MATERIAL FOR AN UNDUCTED FAN OF AN AIRCRAFT

#4
20260097842
2026-04-09

PROPULSION ASSEMBLY FOR AN AIRCRAFT PROVIDED WITH A PROPELLER AND A CYCLIC PITCH DEVICE FOR THE BLADES OF THE PROPELLER AND METHOD FOR REGULATING THE CYCLIC PITCH OF THE BLADES OF THE PROPELLER

#5
20260070665
2026-03-12

AIRCRAFT WITH AN UNDUCTED FAN PROPULSOR

#6
20260008535
2026-01-08

BLADE OR VANE WITH A ROOT MADE BY CROSSING WEFT YARNS

#7
20250353589
2025-11-20

BLADE SPAR

#8
20250326482
2025-10-23

BLADE COMPRISING A STRUCTURE MADE OF COMPOSITE MATERIAL, AND ASSOCIATED MANUFACTURING METHOD

#9
20250257663
2025-08-14

PROPELLER BLADE OR VANE HAVING A HOLLOW COMPOSITE ROOT

#10
20250100710
2025-03-27

BONDING TAB ASSEMBLIES PROVIDING LIGHTNING STRIKE PROTECTION FOR COMPOSITE AIRCRAFT PROPELLERS

#11
20250091710
2025-03-20

Automated Variable Pitch Propeller Blade

#12
20250010974
2025-01-09

HOLLOW STRUCTURE AND PROPELLER BLADE

#13
20250002137
2025-01-02

BLADE, FLYING OBJECT, AND MANUFACTURING METHOD THEREOF

#14
20240417063
2024-12-19

Composite airfoil assembly and method of forming a composite airfoil assembly

#15
20240183278
2024-06-06

Turbine engine with composite airfoil having a non-metallic leading edge protective wrap

#16
20240150009
2024-05-09

MULTI-LAYER BRAIDED ARTICLE

#17
20240109645
2024-04-04

Propeller blade

#18
20240003329
2024-01-04

COMPOSITE THERMOPLASTIC ROTOR BLADE WITH INTEGRAL CUFF

#19
20230348042
2023-11-02

Unducted fan having variable pitch blades comprising reduced disturbance platforms

#20
20230184116
2023-06-15

ROTATABLE AEROFOIL COMPONENT WITH Z-PINS

#21
20230081843
2023-03-16

Composite blade for a turbine engine rotor

#22
20230044779
2023-02-09

Blade comprising a composite material structure and associated manufacturing method

#23
20220363019
2022-11-17

Octogrid constructions and applications utilizing double-double laminate structures

#24
20220290572
2022-09-15

Turbine engine with composite airfoil having a non-metallic leading edge protective wrap

#25
20220274686
2022-09-01

Automated variable pitch propeller blade

#26
20220251958
2022-08-11

Reinforced blade

#27
20220097824
2022-03-31

Propeller blade or vane for an aircraft with particular weaving of a fibre preform receiving a bladder filled with a shaping foam

#28
20210403142
2021-12-30

Multi-layer braided article

#29
20210394888
2021-12-23

Sacrificial blade tips for ducted aircraft

#30
20210187439
2021-06-24

Tower rotor blades that capture CO2 carbon dioxide

#31
20210101672
2021-04-08

Additive manufacture proprotor blade

#32
20210031901
2021-02-04

Method for manufacturing a propeller blade and a propeller blade

#33
20200398507
2020-12-24

System and method for repairing a composite structure

#34
20200300099
2020-09-24

Aircraft turbomachine provided with an unducted propeller with blades having a composite-material insert bonded to their leading edges

#35
20200298958
2020-09-24

Systems and methods of constructing composite assemblies

#36
20200255122
2020-08-13

Automated variable pitch propeller blade

#37
20200223531
2020-07-16

Composite propeller vane or blade for aircraft integrating a conformation part

#38
20200217206
2020-07-09

Methods of customizing, manufacturing, and repairing a rotor blade using additive manufacturing processes and a rotor blade incorporating the same

#39
20200149419
2020-05-14

Aerodynamic or hydrodynamic blade made of layered material

#40
20200094450
2020-03-26

Methods for forming rotor blades having foam cores

#41
20200047879
2020-02-13

All-fabric spar for aerodynamic components

#42
20190323357
2019-10-24

Blade comprising a structure made of composite material and method for manufacturing the same

#43
20190291861
2019-09-26

Rotor blade afterbody

#44
20190248472
2019-08-15

PROPELLER ASSEMBLY

#45
20190217943
2019-07-18

Composite aircraft propeller blade with an integrated spar

#46
20190211841
2019-07-11

Composite fan blades with integral attachment mechanism

#47
20190176964
2019-06-13

Corrugated lift fan rotor

#48
20190118523
2019-04-25

Selectively activated frangible bonding system

#49
20190032491
2019-01-31

Methods of customizing, manufacturing, and repairing a rotor blade using additive manufacturing processes

#50
20190031329
2019-01-31

Method of fabricating a rotor blade filler body, and a rotor blade filler body comprising at least one cellular assembly having closed cells

#51
20180334912
2018-11-22

Composite blade and method of manufacture

#52
20180333922
2018-11-22

Aircraft blade and methods of forming and repairing an aircraft blade

#53
20180312239
2018-11-01

Three dimensional auxetic structure, manufacturing method and tooling

#54
20180128112
2018-05-10

Reinforced blade

#55
20180127088
2018-05-10

Reinforced blade and spar

#56
20180127087
2018-05-10

Reinforced blade and spar

#57
20180126687
2018-05-10

Composite structure

#58
20180043988
2018-02-15

Automated variable pitch propeller blade

#59
20180038385
2018-02-08

Micro lattice hybrid composite fan blade

#60
20170355446
2017-12-14

Propeller blades

#61
20170341732
2017-11-30

Assembly of two parts, one of which is made of composite material, the parts being assembled together by a mechanical anchor element

#62
20170334548
2017-11-23

Structurally biased proprotor blade assembly

#63
20170327205
2017-11-16

Folding proprotor blade assembly having integral tang assembly

#64
20170174338
2017-06-22

Propeller surface area treatments for sound dampening

#65
20170023008
2017-01-26

Fan blade with composite cover and sacrificial filler

#66
20160272299
2016-09-22

Lightweight propeller blade with improved retention capacity

#67
20160221273
2016-08-04

Method for manufacturing a propeller blade

#68
20160178531
2016-06-23

Remote connection system for an aircraft

#69
20160176509
2016-06-23

Propeller blade for an aircraft engine

#70
20160159460
2016-06-09

Composite propeller blade for an aircraft

#71
20150344125
2015-12-03

Energy absorption device for aircraft structural element

#72
20150233249
2015-08-20

Propeller blade and method

#73
20150147183
2015-05-28

Propeller with lightening strike protection

#74
20150064013
2015-03-05

System and methods of constructing composite assemblies

#75
20150013160
2015-01-15

Method for producing a propeller blade from a composite material

#76
20140377076
2014-12-25

Joint assembly and method of forming thereof

#77
20140314577
2014-10-23

Propeller blade retention

#78
20140133995
2014-05-15

PROPELLER BLADE WITH MODIFIED SPAR STIFFNESS

#79
20130343898
2013-12-26

Propeller blade with carbon foam spar core

#80
20130323068
2013-12-05

Propeller blade with spar rib

#81
20130287584
2013-10-31

Propeller blade with modified spar layup

#82
20130280084
2013-10-24

Propeller blade with internal stiffener

#83
20130280079
2013-10-24

PROPELLER BLADE WITH METALLIC FOAM SPAR CORE

#84
20130272893
2013-10-17

Blade having an integrated composite spar

#85
20130266452
2013-10-10

Propeller blade with reinforced spar core

#86
20130186507
2013-07-25

Method for producing a fibrous metal structure by means of weaving

#87
20130177422
2013-07-11

Rotor blade and an aircraft

#88
20130164142
2013-06-27

Propeller blade with reinforcing spars and boxes, and propeller comprising at least one such blade

#89
20130142658
2013-06-06

Rotor blade

#90
20130136615
2013-05-30

Propeller blade with lightweight insert

#91
20130136614
2013-05-30

Propeller blade having compliant adhesive at spar interface

#92
20130129507
2013-05-23

Composite propeller spar

#93
20130017093
2013-01-17

Aircraft propeller blade

#94
20120279641
2012-11-08

Single-piece propeller and method of making

#95
20120195762
2012-08-02

Blade and method of fabricating said blade

#96
20120020801
2012-01-26

Structural element for an aircraft or spacecraft and method for producing such a structural element

#97
20100215498
2010-08-26

Blade for turbomachine receiving part, comprising an airfoil part including a mechanical fuse

#98
20100209254
2010-08-19

Vane for aircraft turbine engine receiver, provided with two hollow cores lodged in one another

#99
20090220347
2009-09-03

Single-piece propeller and method of making

#100
20050175458
2005-08-11

Propeller, propeller propulsion system and vessel comprising propulsion system

#101
18646398
2026-04-14

Blade manufacturing for vertical take-off dual-engine aircraft

#102
16824513
2022-11-22

Composite airfoil with rolled fiberglass reinforced leading edge

#103
15838784
2019-01-01

Corrugated lift fan rotor

#104
15799819
2020-05-05

Composite airfoil with rolled fiberglass reinforced leading edge

#105
15647974
2019-08-27

Method of producing aerofoils

#106
13373440
2016-11-22

Composite rotor blade for a reaction drive rotorcraft