For the Inventor, By the Inventor

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Shandong, China

Qingdao Sri Technology Co., Ltd.

USPTO Granted Patents = 3

EPO Patents = 5

Forward Citations = 0

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5 inventors (with patents filed for the assignee):

Hui Liu (3 out of 16 patents)

Kai Chen (3 out of 7 patents)

Quan Liu (1 out of 3 patents)

4. Jibo Liu (1 out of 2 patents)

5. Hai Zhao (1 out of 1 patent)

6. Guanwen Zhu (1 patent)

7. Xiao Lv (0 patent)

8. Zhiqiang Zhang (0 patent)

9. Bin Sun (0 patent)

10. Rubo Ge (0 patent)

11. Xiangjie Ren (0 patent)

12. Hui Liu (4 patents)

13. Jiang He (0 patent)

3 patents: Sort by Forward Citations

1. 10435046 - Coupler uncoupling control mechanism (2019-10-08),

2. 9919721 - Front suspension system having overload protection (2018-03-20),

3. 9902408 - Vertical spring support device for coupler (2018-02-27),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#66 in Shandong

#7,245 in China

Shandong, China

Qingdao Sri Technology Co., Ltd.

Forward Citations = 0

5 inventors:

Hui Liu (3 out of 16 patents)

Kai Chen (3 out of 7 patents)

Quan Liu (1 out of 3 patents)

4. Jibo Liu (1 out of 2 patents)

5. Hai Zhao (1 out of 1 patent)

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