For the Inventor, By the Inventor

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Shanghai, China

Shanghai Shift Electrics Co., Ltd.

USPTO Granted Patents = 6

EPO Patents = 2

Forward Citations = 0

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4 inventors (with patents filed for the assignee):

Xiaoguo Dai (6 out of 20 patents)

Zhenwu Xu (6 out of 20 patents)

Hongtao Zhang (2 out of 3 patents)

4. Changjin Zhang (2 out of 2 patents)

6 patents: Sort by Forward Citations

1. 12727982 - Personal care appliance with light-emitting end cover (2026-09-08),

2. 12721709 - Switch assembly for cleaning and caring appliance and cleaning and caring appliance (2026-09-01),

3. 12714220 - Toothbrush (2026-08-25),

4. 12647010 - Cleaning and caring appliance and transducing apparatus thereof (2026-06-02),

5. 12642348 - Toothbrush (2026-06-02),

6. 12527393 - Oscillating toothbrush (2026-01-20),

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USPTO Data Jan 1 1976 - Sep 22 2026

6 Patents

#388 in Shanghai

#4,424 in China

Shanghai, China

Shanghai Shift Electrics Co., Ltd.

Forward Citations = 0

4 inventors:

Xiaoguo Dai (6 out of 20 patents)

Zhenwu Xu (6 out of 20 patents)

Hongtao Zhang (2 out of 3 patents)

4. Changjin Zhang (2 out of 2 patents)

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