B64C2027/4733 - CPC Classification Index

ClassID:

72130 ⎘

B64C2027/4733 - CPC Classification

Classification description:

Rotorcraft; Rotors peculiar thereto; Rotors; Blades; Constructional features Rotor blades substantially made from particular materials

Sub-classes:

B64C2027/4736 » {from composite materials} 128

Recent Application in this class:

20250353589

2025-11-20

BLADE SPAR

20220276279

2022-09-01

Blade angle position feedback system with embedded markers

20210253482

2021-08-19

Impregnated fibers comprising preceramic resin formulations, and related composite materials and methods

20210071589

2021-03-11

Pitch control assembly for an aircraft-bladed rotor

20210070434

2021-03-11

Feedback device with variable magnetic permeability

20210070433

2021-03-11

Insert for a blade of a rotary-wing aircraft

20210070424

2021-03-11

Blade angle position feedback system with embedded markers

20200115044

2020-04-16

Erosion protection coating with screen

20200095488

2020-03-26

Compositions and methods for fabricating coatings

#10

20200047906

2020-02-13

Invertible aircraft

#11

20190315493

2019-10-17

Foreign object damage elimination system

#12

20190016640

2019-01-17

Preceramic resin formulations, impregnated fibers comprising the preceramic resin formulations, and related methods

#13

20180029699

2018-02-01

Rotor blade erosion protection systems

#14

20170240289

2017-08-24

Invertible aircraft

#15

20170158355

2017-06-08

Foreign object damage elimination system

#16

20170057627

2017-03-02

Metallic dimpled doubler

#17

20160152335

2016-06-02

Invertible aircraft

#18

20160130010

2016-05-12

Invertible aircraft

#19

20160046370

2016-02-18

Anti-erosion structure for aircrafts

#20

20150337447

2015-11-26

Co-bonded electroformed abrasion strip

#21

20130309089

2013-11-21

Shape memory alloy active spars for blade twist