ZR

Zhang Ren

AC Aac Microtech (Changzhou) Co.: 13 patents #1 of 83Top 2%
Overall (2025): #3,271 of 469,880Top 1%
13
Patents 2025

Issued Patents 2025

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
12413910 Speaker device Zhiwei Zhong, Qiaoling Li 2025-09-09
12407987 Speaker device Zhiwei Zhong 2025-09-02
12407975 Coaxial speaker Zhiwei Zhong, Qi Wang 2025-09-02
12407976 Coaxial earphone core Zhiwei Zhong 2025-09-02
12407986 Sounding device Zhiwei Zhong 2025-09-02
12401939 Coaxial speaker box Zhiwei Zhong, Qi Wang 2025-08-26
12395795 Sound device Zhiwei Zhong 2025-08-19
12389161 Coaxial speaker Zhiwei Zhong, Qi Wang 2025-08-12
12317047 Vibration sounding device Ronglin Linghu, Wei Song 2025-05-27
12317048 Sounding device Zhiwei Zhong 2025-05-27
12289572 Electronic device with a sounding function Qi Wang, Zhiwei Zhong 2025-04-29
12289590 Coaxial speaker Zhiwei Zhong 2025-04-29
12289591 Coaxial speaker Zhiwei Zhong, Wei Song 2025-04-29