ClassID:

129928

E04B2001/8419 - 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 with non-planar face, e.g. curved, egg-crate shaped Acoustical cones or the like, e.g. for anechoic chambers

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
20210039361
2021-02-11

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

#7
20190257079
2019-08-22

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

#8
20180340328
2018-11-29

Sound insulation sheet member and sound insulation structure using same

#9
20180112396
2018-04-26

Apparatus for improving the acoustics of an interior space, a system incorporating said apparatus and method of using said apparatus

#10
20160076245
2016-03-17

Sound attenuation building material and system

#11
20150252564
2015-09-10

Mirrored insulating panels structures, systems and associated processes

#12
20140151152
2014-06-05

Sound attenuation building material and system

#13
20110308885
2011-12-22

Anti-noise panel

#14
20110284319
2011-11-24

Acoustic panels, apparatus and assemblies with airflow-resistive layers attached to sound incident surfaces

#15
20110123356
2011-05-26

Active/passive distributed absorber for vibration and sound radiation control

#16
20100175335
2010-07-15

Active/Passive distributed Absorber for Vibration and Sound radiation Control

#17
20090107059
2009-04-30

Sound attenuation building material and system

#18
20060131103
2006-06-22

Active/passive distributed absorber for vibration and sound radiation control

#19
20050103568
2005-05-19

Noise abatement wall

#20
15234357
2017-04-18

Noise-cancelling wall