Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6932853 | Mechanical separation of volatile metals at high temperatures | James E. Bratina | 2005-08-23 |
| 6831939 | Dual use of an induction furnace to produce hot metal or pig iron while processing iron and volatile metal containing materials | James E. Bratina | 2004-12-14 |
| 4994952 | Low-noise switching power supply having variable reluctance transformer | Donald M. Silva, Leroy F. Silva | 1991-02-19 |
| 4876638 | Low-noise switching power supply having variable reluctance transformer | Donald M. Silva, Leroy F. Silva | 1989-10-24 |