Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4559477 | Three chamber negative ion source | Ka-Ngo Leung, Kenneth W. Ehlers | 1985-12-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4559477 | Three chamber negative ion source | Ka-Ngo Leung, Kenneth W. Ehlers | 1985-12-17 |