Inventor

LINGHU RONGLIN

CN69 patents

⚠️ This page may combine multiple inventors who share the name “LINGHU RONGLIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AAC MICROTECH CHANGZHOU CO LTD

31 patents

US12413897B2Sep 9, 2025

Coaxial speaker

AAC MICROTECH CHANGZHOU CO LTD3 citations75

US12317047B2May 27, 2025

Vibration sounding device

AAC MICROTECH CHANGZHOU CO LTD2 citations75

US12052540B2Jul 30, 2024

Speaker box

AAC MICROTECH CHANGZHOU CO LTD4 citations75

US12041435B2Jul 16, 2024

Multifunctional sounding device

AAC MICROTECH CHANGZHOU CO LTD6 citations75

US11805369B2Oct 31, 2023

Sounding device

AAC MICROTECH CHANGZHOU CO LTD4 citations75

US11968515B2Apr 23, 2024

Multifunctional sounding device

AAC MICROTECH CHANGZHOU CO LTD4 citations74

US12052557B2Jul 30, 2024

Multifunctional sounding device

AAC MICROTECH CHANGZHOU CO LTD2 citations73

US11589167B1Feb 21, 2023

Multifunctional electromagnetic transducer

AAC MICROTECH CHANGZHOU CO LTD2 citations73

US11968514B2Apr 23, 2024

Vibration sounding device

AAC MICROTECH CHANGZHOU CO LTD2 citations72

US11950046B2Apr 2, 2024

Multifunctional sounding device

AAC MICROTECH CHANGZHOU CO LTD2 citations72

US11546695B2Jan 3, 2023

Speaker

AAC MICROTECH CHANGZHOU CO LTD2 citations72

US12108231B2Oct 1, 2024

Multifunctional acoustic device

AAC MICROTECH CHANGZHOU CO LTD0 citations63

US11800267B2Oct 24, 2023

Speaker box

AAC MICROTECH CHANGZHOU CO LTD0 citations63

US12562697B2Feb 24, 2026

Driving circuit for audio power amplifier and electronic device

AAC MICROTECH CHANGZHOU CO LTD0 citations62

US11871201B2Jan 9, 2024

Speaker

AAC MICROTECH CHANGZHOU CO LTD0 citations62

US12556868B2Feb 17, 2026

Speaker

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US12532108B2Jan 20, 2026

Speaker box

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US12532095B2Jan 20, 2026

Multifunctional sounding device

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US12507016B2Dec 23, 2025

Sounding device

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US12506393B2Dec 23, 2025

Motor vibrating device

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US12451785B2Oct 21, 2025

Vibration motor

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US12452607B2Oct 21, 2025

Speaker

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US12413911B2Sep 9, 2025

Multi-functional sound-generating device

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US12407977B2Sep 2, 2025

Speaker device and headphone

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US12335703B2Jun 17, 2025

Multifunctional sounding device

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US12335704B2Jun 17, 2025

Multifunctional sounding device

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US12335711B2Jun 17, 2025

Multifunctional sounding device

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US12192727B2Jan 7, 2025

Multifunctional acoustic device

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US12088996B2Sep 10, 2024

Multifunctional sounding device

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US11805366B2Oct 31, 2023

Multifunctional electromagnetic transducer

AAC MICROTECH CHANGZHOU CO LTD0 citations52

US11540044B2Dec 27, 2022

Speaker device

AAC MICROTECH CHANGZHOU CO LTD0 citations52

AAC TECHNOLOGIES PTE LTD

12 patents

US10250989B1Apr 2, 2019

Micro sound generating device and method of assembling same

AAC TECHNOLOGIES PTE LTD22 citations94

US10284959B2May 7, 2019

Loudspeaker

AAC TECHNOLOGIES PTE LTD7 citations84

US11206477B2Dec 21, 2021

Sound transducer structure of electronic device

AAC TECHNOLOGIES PTE LTD3 citations73

US11026025B2Jun 1, 2021

Speaker

AAC TECHNOLOGIES PTE LTD3 citations73

US10448167B2Oct 15, 2019

Acoustic device

AAC TECHNOLOGIES PTE LTD5 citations73

US10299045B2May 21, 2019

Miniature speaker

AAC TECHNOLOGIES PTE LTD4 citations73

US11109161B2Aug 31, 2021

Sound device

AAC TECHNOLOGIES PTE LTD0 citations63

US10979821B2Apr 13, 2021

Sound generator

AAC TECHNOLOGIES PTE LTD0 citations63

US10659883B2May 19, 2020

Magnetic bowl and sounding device

AAC TECHNOLOGIES PTE LTD1 citations63

US10462576B2Oct 29, 2019

Acoustic device

AAC TECHNOLOGIES PTE LTD1 citations63

US10250992B2Apr 2, 2019

Speaker

AAC TECHNOLOGIES PTE LTD1 citations63

US10979818B2Apr 13, 2021

Speaker with holder having engaging groove

AAC TECHNOLOGIES PTE LTD0 citations62

LINGHU RONGLIN

3 patents

US10003887B2Jun 19, 2018

Miniature sound generator

LINGHU RONGLIN9 citations83

US9936302B2Apr 3, 2018

Miniature sounder

LINGHU RONGLIN10 citations83

US10057691B2Aug 21, 2018

Miniature sounder

LINGHU RONGLIN2 citations72

AAC ACOUSTIC TECH SHENZHEN CO LTD

2 patents

US10979819B2Apr 13, 2021

Sound device

AAC ACOUSTIC TECH SHENZHEN CO LTD1 citations63

US12363482B2Jul 15, 2025

Sounding device

AAC ACOUSTIC TECH SHENZHEN CO LTD0 citations52

XIAO BO

1 patent

US10091570B2Oct 2, 2018

Miniature sound generator

XIAO BO4 citations73

AAC TECH NANJING CO LTD

1 patent

US12517586B2Jan 6, 2026

Multi-functional feedback device, haptic feedback system, and AR/VR glass

AAC TECH NANJING CO LTD0 citations52

Showing the top 50 of 69 patents by PatentIndex Score.