Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9609615 | Method for building database for fingerprinting positioning and fingerprinting positioning method using the built database | — | 2017-03-28 |
| 5173633 | Dispenser cathode | Kyu-Nam Joo, Jong-Suh Choi, Hwan-Chul Rho | 1992-12-22 |
| 4976644 | Manufacturing method for dispenser cathode for an electron gun | — | 1990-12-11 |