% Expired Patents = 33.3

EPO Patents = 2

Forward Citations = 3

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11 inventors (with patents filed for the assignee):

Ming-Chih Chen (3 out of 15 patents)

Chih-Ming Chen (2 out of 18 patents)

Chih-Kang Toh (2 out of 2 patents)

4. Hsiang-Jen Yang (1 out of 1 patent)

5. Chen-Rui Tseng (1 out of 1 patent)

6. Li-wen Lai (1 out of 2 patents)

7. Chih-hui Tai (1 out of 1 patent)

8. Wei-lun Tsai (1 out of 1 patent)

9. Hsin-I Ho (1 out of 1 patent)

10. Ching-Cheng Chen (1 out of 1 patent)

11. Yu-Ping Huang (2 patents)

12. Li-Wen Lai (0 patent)

13. Wei-Lun Tsai (0 patent)

14. Ching-Cheng Chen (0 patent)

15. Chih-Hui Tai (0 patent)

6 patents: Sort by Forward Citations

1. 12661742 - Thick steel plate assembly welded by laser welding and laser welding method thereof (2026-06-23),

2. 12455298 - Test system for testing semiconductor devices (2025-10-28),

3. 12429287 - Heat exchanging apparatus (2025-09-30),

4. 8692560 - Method for testing mask articles (2014-04-08),

5. 8604806 - Method for testing mask articles (2013-12-10),

6. 8502544 - Method for testing mask articles (2013-08-06),

Taiwan Mask Corporation specializes in the production of high-quality masks for various applications, including medical, industrial, and personal use. Established in Taiwan, the company is committed to innovation and sustainability, utilizing advanced manufacturing techniques to ensure product safety and effectiveness. With a focus on meeting international standards, Taiwan Mask Corporation aims to provide reliable protective solutions to customers worldwide.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

6 Patents

#321 in Hsinchu

#2,086 in Taiwan

Hsinchu, Taiwan

Taiwan Mask Corporation