ClassID:

129930

E04B2001/8428 - CPC Classification

Classification description:

Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs; Insulation or other protection; Elements or use of specified material therefor; Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only; Sound-absorbing elements; Tray or frame type panels or blocks, with or without acoustical filling containing specially shaped acoustical bodies, e.g. funnels, egg-crates, fanfolds

Recent Application in this class:
#1
20250230650
2025-07-17

SOUND INSULATION SHEET MEMBER AND SOUND INSULATION STRUCTURE USING SAME

#2
20240044131
2024-02-08

Sound insulation sheet member and sound insulation structure using same

#3
20240042742
2024-02-08

Composition for sound insulating sheet member, sound insulating sheet member, and sound insulating structure body

#4
20240035273
2024-02-01

Sound insulation sheet member and sound insulation structure using same

#5
20220018120
2022-01-20

Sound insulation sheet member and sound insulation structure using same

#6
20210381231
2021-12-09

Soft acoustic boundary plate

#7
20210324624
2021-10-21

Acoustic baffle assembly

#8
20210277828
2021-09-09

Alternating helicoid cell structure and methods of producing the same

#9
20210115664
2021-04-22

Acoustic device thermoforming

#10
20210115663
2021-04-22

Acoustic seal and a sound proof booth comprising the same

#11
20210074255
2021-03-11

Broadband sound absorber based on inhomogeneous-distributed Helmholtz resonators with extended necks

#12
20210039361
2021-02-11

Composition for sound insulating sheet member, sound insulating sheet member, and sound insulating structure body

#13
20200291645
2020-09-17

ACOUSTIC PANEL

#14
20200199866
2020-06-25

Two-way acoustic panel

#15
20190270504
2019-09-05

Acoustic liners with oblique cellular structures

#16
20190257079
2019-08-22

Special lightweight, durable mounting system for sound foam panel and quick installation process

#17
20190112803
2019-04-18

Enhanced acoustic cell and enhanced acoustic panel, and methods of producing the same

#18
20190080677
2019-03-14

Acoustic-absorber system and method

#19
20190063318
2019-02-28

Acoustic liner having internal structure

#20
20180340328
2018-11-29

Sound insulation sheet member and sound insulation structure using same

#21
20180025713
2018-01-25

Panel for sound suppression

#22
20160289955
2016-10-06

Wall element

#23
20130264145
2013-10-10

Panel

#24
20120247867
2012-10-04

COMPOSITE SOUND-ABSORBING DEVICE WITH BUILT IN RESONANT CAVITY

#25
20110308885
2011-12-22

Anti-noise panel

#26
20110266088
2011-11-03

Soundproof panel and soundproof structure

#27
20080196968
2008-08-21

Sound absorbing element and method for producing a sound absorbing element

#28
20080128080
2008-06-05

Hollow structure plate, manufacturing method thereof, manufacturing device thereof, and sound absorbing structure plate

#29
20080113128
2008-05-15

Hollow structure plate, manufacturing method thereof, manufacturing device thereof, and sound absorbing structure plate

#30
20070062145
2007-03-22

Structure of the light weight building materials with sound absorption and isolation character

#31
20050126852
2005-06-16

Hollow structure plate, manufacturing method thereof, manufacturing device thereof, and sound absorbing structure plate