Yajian Zheng

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Shenzhen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Sound device
- Patent number 12,192,728
- Issue date Jan 7, 2025
- AAC Microtech (Changzhou) Co., Ltd.
- Dijiang Tong
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speaker box
- Patent number 10,932,038
- Issue date Feb 23, 2021
- AAC Acoustic Technologies (Shenzhen) Co., Ltd.
- Yajian Zheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speaker box
- Patent number 10,932,039
- Issue date Feb 23, 2021
- AAC Acoustic Technologies (Shenzhen) Co., Ltd.
- Yajian Zheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Sound device
- Publication number 20240056739
- Publication date Feb 15, 2024
- AAC Microtech (Changzhou) Co., Ltd.
- Dijiang Tong
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Sounding Device
- Publication number 20240056741
- Publication date Feb 15, 2024
- AAC Microtech (Changzhou) Co., Ltd.
- Dijiang Tong
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SPEAKER
- Publication number 20240056738
- Publication date Feb 15, 2024
- AAC Microtech (Changzhou) Co., Ltd.
- Dijiang Tong
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SPEAKER BOX
- Publication number 20200162812
- Publication date May 21, 2020
- AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD
- Yajian Zheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SPEAKER BOX
- Publication number 20200162811
- Publication date May 21, 2020
- AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD
- Yajian Zheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE