Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6616725 | Self-grown monopoly compact grit | Hyun Sam Cho, John Chen | 2003-09-09 |
| 6068913 | Supported PCD/PCBN tool with arched intermediate layer | Hyun Sam Cho | 2000-05-30 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6616725 | Self-grown monopoly compact grit | Hyun Sam Cho, John Chen | 2003-09-09 |
| 6068913 | Supported PCD/PCBN tool with arched intermediate layer | Hyun Sam Cho | 2000-05-30 |