Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6204623 | Heater, humidifier or fan including a circuit for controlling the output thereof | William Levy, John C. Polonchak | 2001-03-20 |
| 5708256 | Heating pad controller with variable duty cycle for temperature adjustment | James G. Montagnino, Ronald Lerner, John C. Polonchak | 1998-01-13 |
| 5354967 | Hair styling appliance heater and control | Yinon Barzilai, William Levy | 1994-10-11 |
| 4330794 | Multichannel subscription television system | — | 1982-05-18 |
| 4303960 | Electrostatic discharge-protected switch | Svein T. Nordberg | 1981-12-01 |