Inventor · disambiguated record
Kejia Liu
Also filed as: LIU KEJIA
13 granted patents·9 pending applications·25 citations·filing 2015–2024
84Inventor score
Files withAAC MICROTECH CHANGZHOU CO LTD9AAC ACOUSTIC TECH SHENZHEN CO LTD4AAC TECH NANJING CO LTD4AAC TECHNOLOGIES PTE LTD4CHAMBERLAIN GROUP INC1
Top patents by PatentIndex Score
22 records- 0196US11641151B2Linear vibration motor with elastic members with brackets, foams and damping glueAAC MICROTECH CHANGZHOU CO LTD·Filed 2021·Granted May 2, 2023·5 cites·9 claims
- 0283US11943596B2Acoustic deviceAAC MICROTECH CHANGZHOU CO LTD·Filed 2022·Granted Mar 26, 2024·1 cites·10 claims
- 0382US9734644B2Wireless camera facilitated building securityCHAMBERLAIN GROUP INC·Filed 2015·Granted Aug 15, 2017·18 cites·23 claims
- 0467US11750074B2Linear vibration motor with elastic member and flexible PCB fixed on a fixing member via positioning holesAAC MICROTECH CHANGZHOU CO LTD·Filed 2021·Granted Sep 5, 2023·0 cites·9 claims
- 0564US10932033B2Speaker boxAAC TECHNOLOGIES PTE LTD·Filed 2019·Granted Feb 23, 2021·1 cites·10 claims
- 0662US11697133B2Linear motorAAC MICROTECH CHANGZHOU CO LTD·Filed 2021·Granted Jul 11, 2023·0 cites·10 claims
- 0759US11404987B2Motor and driving device using sameAAC TECHNOLOGIES PTE LTD·Filed 2020·Granted Aug 2, 2022·0 cites·17 claims
- 0857US12452592B2Coaxial speaker protection method, coaxial speaker protection system, coaxial speaker protection device, and coaxial speaker protectorAAC TECH NANJING CO LTD·Filed 2023·Granted Oct 21, 2025·0 cites·10 claims
- 0954US12477274B2Coaxial speaker protection method, coaxial speaker protection system, coaxial speaker protection device, and coaxial speaker protectorAAC TECH NANJING CO LTD·Filed 2023·Granted Nov 18, 2025·0 cites·10 claims
- 1054US12003938B2SpeakerAAC MICROTECH CHANGZHOU CO LTD·Filed 2022·Granted Jun 4, 2024·0 cites·8 claims
- 1153US2022200430A1Linear motorAAC MICROTECH CHANGZHOU CO LTD·Filed 2021·Application pending·0 cites
- 1253US2022278599A1Multi-solenoid linear vibration motorAAC MICROTECH CHANGZHOU CO LTD·Filed 2021·Application pending·0 cites
- 1353US2022368206A1Linear vibration motorAAC MICROTECH CHANGZHOU CO LTD·Filed 2021·Application pending·0 cites
- 1447US11950071B2Acoustic deviceAAC MICROTECH CHANGZHOU CO LTD·Filed 2022·Granted Apr 2, 2024·0 cites·8 claims
- 1546US2024340590A1Coaxial speaker protection method, coaxial speaker protection system, coaxial speaker protection device, and coaxial speaker protectorAAC TECH NANJING CO LTD·Filed 2023·Application pending·0 cites
- 1646US2021057976A1Vibration motorAAC TECHNOLOGIES PTE LTD·Filed 2020·Application pending·0 cites
- 1746US2024340582A1Coaxial speaker tweeter temperature protection method and system, and computer-readable storage mediumAAC TECH NANJING CO LTD·Filed 2024·Application pending·0 cites
- 1845US12289585B2Method and apparatus for eliminating sound leakageAAC ACOUSTIC TECH SHENZHEN CO LTD·Filed 2022·Granted Apr 29, 2025·0 cites·7 claims
- 1945US12154538B2Method and apparatus for eliminating sound leakageAAC ACOUSTIC TECH SHENZHEN CO LTD·Filed 2022·Granted Nov 26, 2024·0 cites·8 claims
- 2043US2020050277A1Touch panelAAC TECHNOLOGIES PTE LTD·Filed 2019·Application pending·0 cites
- 2141US2020045452A1Voice coil and speakerAAC ACOUSTIC TECH SHENZHEN CO LTD·Filed 2019·Application pending·0 cites
- 2240US2020045412A1Sound deviceAAC ACOUSTIC TECH SHENZHEN CO LTD·Filed 2019·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →