Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11662394 | Ground monitor with smart frequency selection | Dale Curtis | 2023-05-30 |
| 10418216 | Phase operation indicator | Dale Curtis | 2019-09-17 |
| 9197055 | Ground monitor current sensing | Dale Curtis | 2015-11-24 |
| 9172234 | Ground monitor circuit protection apparatus | Dale Curtis | 2015-10-27 |
| 9124089 | Ground monitor accessory connection | Dale Curtis | 2015-09-01 |
| 5877447 | Compensation circuit for piezoelectric pickup | — | 1999-03-02 |