Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4770724 | Continuous metal casting method and apparatus and products | Robert T. Frost | 1988-09-13 |
| 4719965 | Continuous metal casting method | Robert T. Frost | 1988-01-19 |
| 4709749 | Continuous metal casting apparatus | Robert T. Frost | 1987-12-01 |
| 4662431 | Continuous metal casting apparatus | Robert T. Frost | 1987-05-05 |
| H135 | Electromagnetic levitation casting apparatus having improved levitation | John P. Wallace | 1986-09-02 |
| 4414285 | Continuous metal casting method, apparatus and product | Robert T. Frost | 1983-11-08 |