For the Inventor, By the Inventor

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Hangzhou, China

Hangzhou Hangke Optoelectronics Group Co., Ltd.

USPTO Granted Patents = 2

Forward Citations = 23

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4 inventors (with patents filed for the assignee):

Qianjun Yan (2 out of 12 patents)

Zhaozhang Zheng (2 out of 12 patents)

Lingli Ma (1 out of 10 patents)

4. Qili Xu (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 11215326 - Filament lamp lighting module and manufacturing method thereof (2022-01-04),

2. 11187387 - Color-controllable LED luminescent lamp (2021-11-30),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#241 in Hangzhou

#9,987 in China

Hangzhou, China

Hangzhou Hangke Optoelectronics Group Co., Ltd.

Forward Citations = 23

4 inventors:

Qianjun Yan (2 out of 12 patents)

Zhaozhang Zheng (2 out of 12 patents)

Lingli Ma (1 out of 10 patents)

4. Qili Xu (1 out of 1 patent)

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