Patents/Inventors

Xiwen Du

ChangzhouCN3 patents

4 Patents

US124526032025
Double-sided Sounding Device
AAC Microtech (Changzhou) Co., Ltd.
0 cites
US123634832025
Speaker
AAC Microtech (Changzhou) Co., Ltd.
0 cites
US123561712025
Sounding Device
AAC Microtech (Changzhou) Co., Ltd.
0 cites
US121927212025
Sound Device
AAC Microtech (Changzhou) Co., Ltd.
0 cites