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Shenzhen, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Sound adsorbing material and speaker box
Patent number
11,488,570
Issue date
Nov 1, 2022
AAC Technologies Pte. Ltd.
Hongshu Feng
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Sound absorbing material, method for process same and speaker using...
Patent number
11,140,475
Issue date
Oct 5, 2021
AAC Acoustic Technologies (Shenzhen) Co., Ltd.
Kun Tang
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Sound absorbing material and speaker box using same
Patent number
10,939,195
Issue date
Mar 2, 2021
AAC Acoustic Technologies (Shenzhen) Co., Ltd.
Jiqiang Dai
C01 - INORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
SOUND ADSORBING MATERIAL AND SPEAKER BOX
Publication number
20200211524
Publication date
Jul 2, 2020
AAC Technologies Pte. Ltd.
Hongshu Feng
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SOUND ABSORBING MATERIAL AND SPEAKER BOX USING SAME
Publication number
20200037062
Publication date
Jan 30, 2020
AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD
Jiqiang Dai
C01 - INORGANIC CHEMISTRY
Information
Patent Application
SOUND ABSORBING MATERIAL AND SPEAKER USING SAME
Publication number
20200037066
Publication date
Jan 30, 2020
AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD
Hongshu Feng
C01 - INORGANIC CHEMISTRY
Information
Patent Application
LOW-FREQUENCY IMPROVEMENT MATERIAL AND SPEAKER SYSTEM USING SAME
Publication number
20200031678
Publication date
Jan 30, 2020
AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD
Hongshu Feng
C01 - INORGANIC CHEMISTRY
Information
Patent Application
SOUND ABSORBING MATERIAL, METHOD PROCESSING SAME AND SPEAKER BOX US...
Publication number
20200031679
Publication date
Jan 30, 2020
AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD
Kun Tang
C01 - INORGANIC CHEMISTRY
Information
Patent Application
SOUND ABSORBING MATERIAL, METHOD FOR PROCESS SAME AND SPEAKER USING...
Publication number
20200037065
Publication date
Jan 30, 2020
AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD
Kun Tang
C01 - INORGANIC CHEMISTRY