For the Inventor, By the Inventor

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Qingdao Qiyuan Cxinkeji Co., Ltd.

USPTO Granted Patents = 4

Forward Citations = 2

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4 inventors (with patents filed for the assignee):

Chong Wei Zhang (3 out of 29 patents)

Wei Ling (3 out of 3 patents)

Jun Huang (2 out of 2 patents)

4. Meizhao Zhang (1 out of 2 patents)

4 patents: Sort by Forward Citations

1. 12155186 - Sealing device and underwater machinery equipment (2024-11-26),

2. 12132276 - Watertight joint and plug-in device (2024-10-29),

3. 12062469 - Waterproof sealing structure for a cable and communication device (2024-08-13),

4. D945350 - Underwater robot (2022-03-08),

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USPTO Data Jan 1 1976 - Dec 30 2025

4 Patents

#56 in Qingdao

#5,594 in China

Qingdao Qiyuan Cxinkeji Co., Ltd.

Forward Citations = 2

4 inventors:

Chong Wei Zhang (3 out of 29 patents)

Wei Ling (3 out of 3 patents)

Jun Huang (2 out of 2 patents)

4. Meizhao Zhang (1 out of 2 patents)

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