EPO Patents = 2

Trademarks = 3

Forward Citations = 10

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6 inventors (with patents filed for the assignee):

Qianjun Yan (10 out of 12 patents)

Zhaozhang Zheng (10 out of 12 patents)

Lingli Ma (9 out of 10 patents)

4. Yaoxing Wang (2 out of 2 patents)

5. Hai Wang (1 out of 7 patents)

6. Jun Li (1 out of 15 patents)

10 patents: Sort by Forward Citations

1. 12326247 - Light tubes, light fixtures, and light bodies (2025-06-10),

2. D1036712 - Light (2024-07-23),

3. 11898727 - Line lamp (2024-02-13),

4. 11662065 - Manufacturing method of LED filament and manufacturing method of bulb (2023-05-30),

5. 11619357 - LED filament and bulb (2023-04-04),

6. 11614221 - Lamp (2023-03-28),

7. 11393966 - Omnidirectional LED light wire and packaging method thereof, light source and lamp (2022-07-19),

8. D943788 - Light bulb (2022-02-15),

9. D943787 - Light bulb (2022-02-15),

10. D943786 - Light bulb (2022-02-15),

Hangzhou Hangke Optoelectronics Co., Ltd. is a leading manufacturer of optical components and solutions for various industries. With a focus on innovation and quality, we provide a wide range of products including lenses, filters, prisms, and more. Our team of experienced engineers and technicians work closely with customers to develop custom solutions to meet their specific needs. We are committed to providing high-quality products and excellent customer service to ensure customer satisfaction.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

10 Patents

#56 in Hangzhou

#2,453 in China

#54,238 in the World

Hangzhou, China

Hangzhou Hangke Optoelectronics Co., Ltd.