Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D641036 | Spring type reverberator | Hyun Park | 2011-07-05 |
| 7960903 | Electron emission source, its method of fabrication, and an electron emission device using the electron emission source | Mee-Ae Ryu, Jae-Sang Ha, Jeong Hee Lee | 2011-06-14 |