Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5291940 | Static vacuum casting of ingots | Janine C. Borofka, Robert A. Borowski, Howard R. Harker | 1994-03-08 |
| 4838340 | Continuous casting of fine grain ingots | Howard R. Harker | 1989-06-13 |
| RE32932 | Cold hearth refining | Howard R. Harker | 1989-05-30 |
| 4750542 | Electron beam cold hearth refining | Howard R. Harker | 1988-06-14 |