Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11662394 | Ground monitor with smart frequency selection | Robin Vice | 2023-05-30 |
| 10418216 | Phase operation indicator | Robin Vice | 2019-09-17 |
| 10141142 | Multiple frequency tone monitor | — | 2018-11-27 |
| 10048299 | Electric power sensor | — | 2018-08-14 |
| 9722408 | ARC-free capacitor trip device | — | 2017-08-01 |
| 9645184 | Watchdog circuit for ground monitor current sensing | — | 2017-05-09 |
| 9547032 | Frequency hopping ground monitor current sensing | — | 2017-01-17 |
| 9541595 | Multi-frequency ground monitor current sensing | — | 2017-01-10 |
| 9541596 | Multi-frequency ground monitor current sensing without a DC component | — | 2017-01-10 |
| 9541594 | Multi-frequency ground monitor current sensing | — | 2017-01-10 |
| 9374633 | Audio amplifier attachable to speaker system by way of magnetic coupler and method therefor | Charles C. Adams, Jerry Kenneth Hubbard, Eric Matthew Miller | 2016-06-21 |
| 9337593 | Plug and receptacle assembly | Shawn Norton, Tom Akers, John Houston | 2016-05-10 |
| 9197055 | Ground monitor current sensing | Robin Vice | 2015-11-24 |
| 9172234 | Ground monitor circuit protection apparatus | Robin Vice | 2015-10-27 |
| 9124089 | Ground monitor accessory connection | Robin Vice | 2015-09-01 |
| 7804966 | Audio amplifier attachable to speaker system by way of magnetic coupler and method therefor | Charles C. Adams, Jerry Kenneth Hubbard, Eric Matthew Miller | 2010-09-28 |
| 7678985 | Standalone electronic module for use with musical instruments | Charles C. Adams, Jeremy Brieske, Lawrence E. Lorenzen | 2010-03-16 |
| 7326849 | Foot-operated docking station for electronic modules used with musical instruments | Charles C. Adams, Jeremy Brieske, Lawrence E. Lorenzen | 2008-02-05 |
| 6694029 | Unobtrusive removal of periodic noise | Charles C. Adams | 2004-02-17 |
| 6222110 | Simulated tone stack for electric guitar | Keith L. Chapman, Charles C. Adams | 2001-04-24 |
| 5260644 | Self-adjusting shunt regulator and method | — | 1993-11-09 |