Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4644749 | Phase locked looped controller for motordrivers | — | 1987-02-24 |
| 4409830 | Wave velocity detecting schemes for traveling wave flow meter | Joannes M. M. de Jong, Richard L. Earle | 1983-10-18 |
| 4360998 | Absolute grain loss monitor | — | 1982-11-30 |