Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6541746 | Microwave oven with a convectional heating apparatus | Dae-sik Kim, Sang Ki Lee | 2003-04-01 |
| 6472647 | Microwave oven with radiant and convectional heating apparatus | Sang Ki Lee, Jeong Seob Seo | 2002-10-29 |