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last 30 patents
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Patent Application
Double-sided Sounding Device
Publication number
20240348980
Publication date
Oct 17, 2024
AAC MICROTECH (CHANGZHOU) CO., LTD.
Long Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Application
Speaker
Publication number
20240284116
Publication date
Aug 22, 2024
AAC MICROTECH (CHANGZHOU) CO., LTD.
Xiwen Du
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Sounding Device
Publication number
20240114293
Publication date
Apr 4, 2024
AAC MICROTECH (CHANGZHOU) CO., LTD.
Long Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Sound device
Publication number
20240073609
Publication date
Feb 29, 2024
AAC Microtech (Changzhou) Co., Ltd.
Long Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE