% Expired Patents = 100.0

Forward Citations = 3

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13 inventors (with patents filed for the assignee):

Chengmin Li (3 out of 3 patents)

Jianpeng Liu (3 out of 5 patents)

Dong Yan (2 out of 4 patents)

4. Linzi Wang (2 out of 2 patents)

5. Tang Zhang (2 out of 2 patents)

6. Tao Liu (1 out of 78 patents)

7. Gaozeng Cui (1 out of 2 patents)

8. Guoguang Li (1 out of 7 patents)

9. Langfeng Wen (1 out of 1 patent)

10. Hongda Jiao (1 out of 1 patent)

11. Xiaochao Ma (1 out of 1 patent)

12. Longmao Ye (1 out of 1 patent)

13. Wei Xiong (1 out of 48 patents)

4 patents: Sort by Forward Citations

1. 11187649 - Method for conducting optical measurement usingfull Mueller matrix ellipsometer (2021-11-30),

2. 10957564 - Self-calibration apparatus and method for real-time temperature measurement system of MOCVD device (2021-03-23),

3. 10908024 - Apparatus and method for online and real-time detection of temperature of epitaxial wafer (2021-02-02),

4. 10731973 - Apparatus for automatically and quickly detecting two-dimensional morphology for wafer substrate in real time (2020-08-04),

Company Overview

AK Optics Technology Co., Ltd. is a leading provider of optical solutions for various industries. With a strong focus on innovation and quality, we offer a wide range of products such as lenses, filters, prisms, and more. Our team of experts is dedicated to providing cutting-edge technology and tailored solutions to meet our customers' specific needs. Visit our website to learn more about our products and services.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

4 Patents

#559 in Beijing

#6,438 in China

Beijing, China

Ak Optics Technology Co., Ltd.

Forward Citations = 3

13 inventors:

Chengmin Li (3 out of 3 patents)

Jianpeng Liu (3 out of 5 patents)

Dong Yan (2 out of 4 patents)

4. Linzi Wang (2 out of 2 patents)

5. Tang Zhang (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ak Optics Technology Co., Ltd.. Retrieved from https://idiyas.com/company/ak-optics-technology-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]