For the Inventor, By the Inventor

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Hong Kong, China

Ifory Limited

USPTO Granted Patents = 3

% Expired Patents = 33.3

Forward Citations = 25

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5 inventors (with patents filed for the assignee):

Yun Feng (3 out of 46 patents)

Zhenhua Liu (3 out of 16 patents)

Yong Huang (2 out of 13 patents)

4. Jiaoping Cao (1 out of 3 patents)

5. YiFei Xiao (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. D921605 - Speaker (2021-06-08),

2. D920947 - Bluetooth speaker (2021-06-01),

3. 10939193 - In-ear detection method for a wireless earphone and a wireless earphone (2021-03-02),

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USPTO Data Jan 1 1976 - Sep 29 2026

3 Patents

#934 in Hong Kong

#8,271 in China

Hong Kong, China

Ifory Limited

Forward Citations = 25

5 inventors:

Yun Feng (3 out of 46 patents)

Zhenhua Liu (3 out of 16 patents)

Yong Huang (2 out of 13 patents)

4. Jiaoping Cao (1 out of 3 patents)

5. YiFei Xiao (1 out of 1 patent)

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