Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7633251 | Single-sensor based commutation of multi-phase motor | — | 2009-12-15 |
| 7423394 | Single-sensor based commutation of multi-phase motor | — | 2008-09-09 |
| 7231139 | Digital noise reduction for motors | Sumner Marshall | 2007-06-12 |
| 6747425 | System for sharing power and signal pins on a motor controller | Sumner Marshall | 2004-06-08 |