For the Inventor, By the Inventor

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Changzhou, China

Changzhou Amt Co., Ltd

USPTO Granted Patents = 1

Forward Citations = 0

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4 inventors (with patents filed for the assignee):

Cheng Zhai (1 out of 6 patents)

Xianzhen Meng (1 out of 1 patent)

Dengwei Wang (1 out of 2 patents)

4. Chuankun Ding (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 11540056 - Speaker and magnetic circuit system thereof (2022-12-27),

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USPTO Data Jan 1 1976 - Dec 23 2025

1 Patents

#118 in Changzhou

#16,077 in China

Changzhou, China

Changzhou Amt Co., Ltd

Forward Citations = 0

4 inventors:

Cheng Zhai (1 out of 6 patents)

Xianzhen Meng (1 out of 1 patent)

Dengwei Wang (1 out of 2 patents)

4. Chuankun Ding (1 out of 1 patent)

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