Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5200713 | Multiple magnetically tuned oscillator | Martin I. Grace | 1993-04-06 |
| 5115209 | Multiple YIG oscillator | Martin I. Grace | 1992-05-19 |
| 4888982 | Method and apparatus for evaluating the hardening of chemically bonded foundry sand molds and cores | David C. Chilton | 1989-12-26 |