For the Inventor, By the Inventor

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Qfeeltech (Beijing) Co., Ltd.

USPTO Granted Patents = 7

Forward Citations = 0

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9 inventors (with patents filed for the assignee):

Zhanglin Liu (3 out of 6 patents)

Wulin Tian (3 out of 4 patents)

Wei Zhang (1 out of 301 patents)

4. Rui Zhu (1 out of 7 patents)

5. Xi Zhao (1 out of 4 patents)

6. Qingyan Liu (1 out of 6 patents)

7. Sichen Xu (1 out of 2 patents)

8. Shaoxuan Gao (1 out of 1 patent)

9. Yafei Shen (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 12737939 - Map optimization method, electronic device, and storage medium (2026-09-15),

2. 12727728 - Method for controlling rotating speed, cleaning robot, and storage medium (2026-09-08),

3. 12699403 - Floor material recognition method, control method, and storage medium (2026-08-04),

4. 12687858 - Autonomous mobile device, operating method and storage medium for controlling autonomous mobile device to move along a work route (2026-07-21),

5. 12685419 - Recharging method for cleaning robot and cleaning robot system (2026-07-21),

6. 12650698 - Autonomous mobile device, operating method for autonomous mobile device, system and storage medium (2026-06-09),

7. 12578735 - Autonomous mobile device, control method and apparatus for autonomous mobile device, and storage medium (2026-03-17),

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

7 Patents

#380 in Beijing

#3,863 in China

Qfeeltech (Beijing) Co., Ltd.

Forward Citations = 0

9 inventors:

Zhanglin Liu (3 out of 6 patents)

Wulin Tian (3 out of 4 patents)

Wei Zhang (1 out of 301 patents)

4. Rui Zhu (1 out of 7 patents)

5. Xi Zhao (1 out of 4 patents)

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