Inventor
CHEN ZHIZHU
CN16 patents
⚠️ This page may combine multiple inventors who share the name “CHEN ZHIZHU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AAC MICROTECH CHANGZHOU CO LTD
15 patentsUS12101616B2Sep 24, 2024
Speaker
AAC MICROTECH CHANGZHOU CO LTD2 citations72
US11956614B2Apr 9, 2024
Speaker device
AAC MICROTECH CHANGZHOU CO LTD2 citations72
US12238500B2Feb 25, 2025
Speaker with better acoustic performance structure
AAC MICROTECH CHANGZHOU CO LTD1 citations63
US12483836B2Nov 25, 2025
Coaxial speaker
AAC MICROTECH CHANGZHOU CO LTD0 citations51
US12477279B2Nov 18, 2025
Multifunctional sounder
AAC MICROTECH CHANGZHOU CO LTD0 citations51
US12418749B2Sep 16, 2025
Sounding device
AAC MICROTECH CHANGZHOU CO LTD0 citations51
US12407988B2Sep 2, 2025
Speaker
AAC MICROTECH CHANGZHOU CO LTD0 citations51
US12335712B2Jun 17, 2025
Speaker
AAC MICROTECH CHANGZHOU CO LTD0 citations51
US12284506B2Apr 22, 2025
Sounding device
AAC MICROTECH CHANGZHOU CO LTD0 citations51
US12238499B2Feb 25, 2025
Sounding unit
AAC MICROTECH CHANGZHOU CO LTD0 citations51
US12185074B2Dec 31, 2024
Sounding device
AAC MICROTECH CHANGZHOU CO LTD0 citations51
US11997465B2May 28, 2024
Speaker device
AAC MICROTECH CHANGZHOU CO LTD0 citations51
US12587790B2Mar 24, 2026
Speaker
AAC MICROTECH CHANGZHOU CO LTD0 citations50
US12532123B2Jan 20, 2026
Speaker
AAC MICROTECH CHANGZHOU CO LTD0 citations50
US12477281B2Nov 18, 2025
Speaker
AAC MICROTECH CHANGZHOU CO LTD0 citations50