For the Inventor, By the Inventor

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Qingdao Jifa Group Co., Ltd.

USPTO Granted Patents = 2

EPO Patents = 2

Trademarks = 1

Forward Citations = 2

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9 inventors (with patents filed for the assignee):

Jian Wang (1 out of 7 patents)

Gang Wan (1 out of 1 patent)

Weidong Yang (1 out of 2 patents)

4. Chongbo Liu (1 out of 1 patent)

5. Dapeng Lin (1 out of 1 patent)

6. Shaobing Liu (1 out of 1 patent)

7. Mingxian Li (1 out of 1 patent)

8. Guangwei Fan (1 out of 1 patent)

9. Jiankai Zhao (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 11168424 - Waterless dyeing device and method for bobbin yarn, and product (2021-11-09),

2. 8496481 - Teaching and training head model for haircutting and hairdressing (2013-07-30),

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USPTO Data Jan 1 1976 - Dec 30 2025

2 Patents

#107 in Qingdao

#10,021 in China

Qingdao Jifa Group Co., Ltd.

Forward Citations = 2

9 inventors:

Jian Wang (1 out of 7 patents)

Gang Wan (1 out of 1 patent)

Weidong Yang (1 out of 2 patents)

4. Chongbo Liu (1 out of 1 patent)

5. Dapeng Lin (1 out of 1 patent)

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