Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4456479 | Vacuum purification of liquid metals | Ralph Harris | 1984-06-26 |
| 4378242 | Vacuum purification of liquid metal | Ralph Harris | 1983-03-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4456479 | Vacuum purification of liquid metals | Ralph Harris | 1984-06-26 |
| 4378242 | Vacuum purification of liquid metal | Ralph Harris | 1983-03-29 |