Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11407900 | Pearlescent pigment for security purposes including organic or inorganic fluorescent material | Kum-Sung CHO, Kyung-don Nam, Jae-Il Jeong, Kwang-Choong Kang, Kwang-Soo Lim +1 more | 2022-08-09 |
| 11370923 | Black pearlescent pigment using natural charcoal and production method thereof | Kum-Sung CHO, Kwang-Choong Kang, Kwang-Soo Lim, Kil-Wan Chang | 2022-06-28 |