% Expired Patents = 25.0

EPO Patents = 5

Forward Citations = 3

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18 inventors (with patents filed for the assignee):

Dong-hyeok Lee (2 out of 4 patents)

Seong-hwa Choo (2 out of 5 patents)

Jeong-ho Lim (2 out of 4 patents)

4. Eun Sik Kim (1 out of 138 patents)

5. Iris Barthel (1 out of 20 patents)

6. Kay Bube (1 out of 16 patents)

7. Jeong Ho Lim (1 out of 3 patents)

8. Seong Hwa Choo (1 out of 1 patent)

9. Min Keun Kwon (1 out of 4 patents)

10. Seong-Hwa Choo (1 out of 1 patent)

11. Bum Jun Kim (1 out of 25 patents)

12. André Häckel (1 out of 3 patents)

13. Sung-ryong Eom (1 out of 1 patent)

14. Paul Polinski (1 out of 1 patent)

15. Andre Häckel (10 patents)

4 patents: Sort by Forward Citations

#100 in Incheon, 402-040

#2,200 in South Korea

Hanil Tube Corp.

Forward Citations = 3

18 inventors:

Dong-hyeok Lee (2 out of 4 patents)

Seong-hwa Choo (2 out of 5 patents)

Jeong-ho Lim (2 out of 4 patents)

4. Eun Sik Kim (1 out of 138 patents)

5. Iris Barthel (1 out of 20 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hanil Tube Corp.. Retrieved from https://idiyas.com/company/hanil-tube

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]

5 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]