% Expired Patents = 75.0

EPO Patents = 5

Forward Citations = 7

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12 inventors (with patents filed for the assignee):

Ho Shin Yoon (3 out of 4 patents)

Seung Hyok Park (3 out of 4 patents)

Choong Youl Kim (2 out of 20 patents)

4. Chang Hee Lee (2 out of 48 patents)

5. Sung Min Kong (1 out of 36 patents)

6. Jun Cho (1 out of 1 patent)

7. Hye Min Boo (1 out of 1 patent)

8. Sung Kyoung Jung (1 out of 1 patent)

9. Joong In An (1 out of 9 patents)

10. Bruce D Rowe (1 out of 18 patents)

11. Lawrence Joseph Kelly (1 out of 16 patents)

12. Hee Seok Choi (1 out of 34 patents)

13. Joon In An (0 patent)

4 patents: Sort by Forward Citations

1. 9493702 - Garnet-based phosphor doped with thorium and light emitting device using the same (2016-11-15),

2. 9328286 - Phosphor and light emitting device (2016-05-03),

3. 8013517 - Phosphor material, coating phosphor composition, and light emitting device (2011-09-06),

4. 6778915 - Athletic swing trainer (2004-08-17),

Force4 Corp. is a leading technology company specializing in providing innovative solutions for businesses. With a focus on data analytics, cloud computing, and cybersecurity, Force4 Corp. helps clients streamline their operations and stay ahead of the competition. Their team of experts are dedicated to delivering cutting-edge technology solutions that drive growth and success for their clients.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

4 Patents

#34 in Gwangju

#2,187 in South Korea

Gwangju, South Korea

Force4 Corp.