EPO Patents = 2

Forward Citations = 0

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13 inventors (with patents filed for the assignee):

Eui Hwan Cho (2 out of 4 patents)

Hee Jong Shin (2 out of 12 patents)

Sung Woo Lee (2 out of 12 patents)

4. Ki Seok Park (2 out of 2 patents)

5. Jong Bae Yoon (2 out of 2 patents)

6. Ho Tae Nam (2 out of 2 patents)

7. Sung Ju Choi (2 out of 8 patents)

8. Woo Heon Song (1 out of 3 patents)

9. Jeong Ho Joo (1 out of 2 patents)

10. Ho Joon Park (1 out of 1 patent)

11. Jae Woong Lee (1 out of 7 patents)

12. Hyun Tae Kim (1 out of 25 patents)

13. Ho Seok Kwon (1 out of 4 patents)

14. Eui-Hwan Cho (11 patents)

15. Woo-Heon Song (0 patent)

2 patents: Sort by Forward Citations

#251 in Gyeonggi-do

#3,801 in South Korea

Astech. Co., Ltd.

Forward Citations = 0

13 inventors:

Eui Hwan Cho (2 out of 4 patents)

Hee Jong Shin (2 out of 12 patents)

Sung Woo Lee (2 out of 12 patents)

4. Ki Seok Park (2 out of 2 patents)

5. Jong Bae Yoon (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Astech. Co., Ltd.. Retrieved from https://idiyas.com/company/astech-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]

2 patents (EPO):

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]