Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7226961 | Thermochromic golf ball | Yang Hwan Park, Kyung Jung Kang, Gwang Hee Lee, Jung Gyu Moon | 2007-06-05 |
| 7179856 | Photoluminescent golf ball | Yang Hwan Park, Kyung Jung Kang, Gwang Hee Lee, Jung Gyu Moon | 2007-02-20 |