Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4706174 | Single phase to multiphase frequency multiplier | Herman P. Schutten, Robert W. Sackett, Jan Sedivy | 1987-11-10 |
| 4706175 | Single phase to polyphase bridge-type frequency multiplier | Herman P. Schutten, Robert W. Sackett, Jan Sedivy | 1987-11-10 |
| 4706183 | Bridge-type frequency multiplier | Herman P. Schutten, Robert W. Sackett, Jan Sedivy | 1987-11-10 |
| 4706184 | Fractional frequency multiplier | Herman P. Schutten, Robert W. Sackett, Jan Sedivy | 1987-11-10 |
| 4459535 | H-Switch start-up control and frequency converter for variable speed AC motor | Herman P. Schutten, Robert W. Sackett, Jan Sedivy | 1984-07-10 |
| 4435750 | Rectified AC frequency converter | Herman P. Schutten, Robert W. Sackett, Jan Sedivy | 1984-03-06 |