Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11717835 | Food waste disposer monitoring using phase difference between motor voltage and motor current | Thomas R. Berger, Charles A. Farago, Gregory L. Cleveland, Alan S. Rohulich | 2023-08-08 |
| 11161123 | Food waste disposer monitoring using phase difference between motor voltage and motor current | Thomas R. Berger, Charles A. Farago, Gregory L. Cleveland, Alan S. Rohulich | 2021-11-02 |
| 6343023 | System and method for recovering energy in power converters | — | 2002-01-29 |
| 5956238 | Blocking time maintenance circuit for ZVS converters | — | 1999-09-21 |
| 5694310 | Three phase input boost converter | Randhir S. Malik | 1997-12-02 |
| 5418703 | DC-DC converter with reset control for enhanced zero-volt switching | Leonard J. Hitchcock | 1995-05-23 |
| 5132889 | Resonant-transition DC-to-DC converter | Leonard J. Hitchcock, Michael M. Walters | 1992-07-21 |
| 5115143 | Efficient P-channel FET drive circuit | Alan S. Rohulich | 1992-05-19 |