Assignee
AAC MICROTECH CHANGZHOU CO LTD
CN268 patents
Top patents by PatentIndex Score
US11638097B1Apr 25, 2023
Speaker
AAC MICROTECH CHANGZHOU CO LTD12 citations86
US11570544B1Jan 31, 2023
Sound-absorbing material, preparation method thereof and speaker using same
AAC MICROTECH CHANGZHOU CO LTD6 citations84
US12413897B2Sep 9, 2025
Coaxial speaker
AAC MICROTECH CHANGZHOU CO LTD3 citations75
US12317047B2May 27, 2025
Vibration sounding device
AAC MICROTECH CHANGZHOU CO LTD2 citations75
US12155991B2Nov 26, 2024
Electronic device with a function of sound
AAC MICROTECH CHANGZHOU CO LTD3 citations75
US12052540B2Jul 30, 2024
Speaker box
AAC MICROTECH CHANGZHOU CO LTD4 citations75
US12041435B2Jul 16, 2024
Multifunctional sounding device
AAC MICROTECH CHANGZHOU CO LTD6 citations75
US11870317B2Jan 9, 2024
Vibration motor vibration member with position limiting gap and protruding part from the weight
AAC MICROTECH CHANGZHOU CO LTD3 citations75
US11805369B2Oct 31, 2023
Sounding device
AAC MICROTECH CHANGZHOU CO LTD4 citations75
US11570534B2Jan 31, 2023
Speaker device
AAC MICROTECH CHANGZHOU CO LTD6 citations75
US12120495B2Oct 15, 2024
Coaxial speaker
AAC MICROTECH CHANGZHOU CO LTD5 citations74
US12051957B2Jul 30, 2024
Linear vibration motor
AAC MICROTECH CHANGZHOU CO LTD3 citations74
US12047733B1Jul 23, 2024
Coaxial speaker
AAC MICROTECH CHANGZHOU CO LTD3 citations74
US11968515B2Apr 23, 2024
Multifunctional sounding device
AAC MICROTECH CHANGZHOU CO LTD4 citations74
US11930341B2Mar 12, 2024
Coaxial speaker
AAC MICROTECH CHANGZHOU CO LTD5 citations74
US11917362B2Feb 27, 2024
Speaker box
AAC MICROTECH CHANGZHOU CO LTD3 citations74
US11641151B2May 2, 2023
Linear vibration motor with elastic members with brackets, foams and damping glue
AAC MICROTECH CHANGZHOU CO LTD5 citations74
US12156007B2Nov 26, 2024
Coaxial speaker
AAC MICROTECH CHANGZHOU CO LTD2 citations73
US12052557B2Jul 30, 2024
Multifunctional sounding device
AAC MICROTECH CHANGZHOU CO LTD2 citations73
US11909289B2Feb 20, 2024
Vibration motor with elastic support arm with flange
AAC MICROTECH CHANGZHOU CO LTD2 citations73
US11589167B1Feb 21, 2023
Multifunctional electromagnetic transducer
AAC MICROTECH CHANGZHOU CO LTD2 citations73
US12101616B2Sep 24, 2024
Speaker
AAC MICROTECH CHANGZHOU CO LTD2 citations72
US12089023B2Sep 10, 2024
Micro speaker and diaphragm mold
AAC MICROTECH CHANGZHOU CO LTD2 citations72
US12003937B2Jun 4, 2024
Speaker
AAC MICROTECH CHANGZHOU CO LTD2 citations72
US11968514B2Apr 23, 2024
Vibration sounding device
AAC MICROTECH CHANGZHOU CO LTD2 citations72
US11956614B2Apr 9, 2024
Speaker device
AAC MICROTECH CHANGZHOU CO LTD2 citations72
US11950046B2Apr 2, 2024
Multifunctional sounding device
AAC MICROTECH CHANGZHOU CO LTD2 citations72
US11949308B2Apr 2, 2024
Vibration motor with elastic support having acute bending angle and obtuse angle
AAC MICROTECH CHANGZHOU CO LTD5 citations72
US11827156B2Nov 28, 2023
Vehicle door
AAC MICROTECH CHANGZHOU CO LTD2 citations72
US11800289B2Oct 24, 2023
Sound generator
AAC MICROTECH CHANGZHOU CO LTD2 citations72
US11589143B2Feb 21, 2023
Speaker box
AAC MICROTECH CHANGZHOU CO LTD5 citations72
US11546695B2Jan 3, 2023
Speaker
AAC MICROTECH CHANGZHOU CO LTD2 citations72
US11490191B1Nov 1, 2022
Acoustic horn and speaker module
AAC MICROTECH CHANGZHOU CO LTD2 citations72
US11950048B2Apr 2, 2024
Sound absorption material, method of making the same and speaker box filled with the same
AAC MICROTECH CHANGZHOU CO LTD2 citations71
US11949309B2Apr 2, 2024
Linear vibration motor with casing having copper ring and vibration unit with magnetic steel assembly
AAC MICROTECH CHANGZHOU CO LTD2 citations71
US11831215B2Nov 28, 2023
Linear vibration motor
AAC MICROTECH CHANGZHOU CO LTD3 citations71
US11671759B2Jun 6, 2023
Speaker
AAC MICROTECH CHANGZHOU CO LTD2 citations71
US11617040B2Mar 28, 2023
Vibration system, sounding device and electronic device
AAC MICROTECH CHANGZHOU CO LTD2 citations70
US12149908B2Nov 19, 2024
Sound device
AAC MICROTECH CHANGZHOU CO LTD2 citations69
US11838741B2Dec 5, 2023
In-vehicle independent sound zone control method, system and related device
AAC MICROTECH CHANGZHOU CO LTD2 citations69
US10323053B2Jun 18, 2019
Polydentate binuclear ring metal complexes and devices containing same
AAC MICROTECH CHANGZHOU CO LTD2 citations67
US12289573B1Apr 29, 2025
Speaker box
AAC MICROTECH CHANGZHOU CO LTD1 citations64
US12568334B2Mar 3, 2026
Speaker
AAC MICROTECH CHANGZHOU CO LTD0 citations63
US12457455B2Oct 28, 2025
Speaker module
AAC MICROTECH CHANGZHOU CO LTD0 citations63
US12356172B2Jul 8, 2025
Loudspeaker
AAC MICROTECH CHANGZHOU CO LTD0 citations63
US12238500B2Feb 25, 2025
Speaker with better acoustic performance structure
AAC MICROTECH CHANGZHOU CO LTD1 citations63
US12207064B2Jan 21, 2025
Method and apparatus for controlling power consumption of speaker, storage medium, and electronic device
AAC MICROTECH CHANGZHOU CO LTD0 citations63
US12108231B2Oct 1, 2024
Multifunctional acoustic device
AAC MICROTECH CHANGZHOU CO LTD0 citations63
US11800267B2Oct 24, 2023
Speaker box
AAC MICROTECH CHANGZHOU CO LTD0 citations63
US12587795B2Mar 24, 2026
Electromagnetic microphone
AAC MICROTECH CHANGZHOU CO LTD0 citations62
Showing the top 50 of 268 patents by PatentIndex Score.