Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4413301 | Circuit protection devices comprising PTC element | Frank A. Doljack | 1983-11-01 |
| 4379220 | Method of heating liquid | Roger S. Goodrich | 1983-04-05 |
| 4352083 | Circuit protection devices | Joseph H. Evans, Arthur Edward Blake, Victor A. Scheff | 1982-09-28 |
| 4329726 | Circuit protection devices comprising PTC elements | Joseph H. Evans, Donald F. Pettengill | 1982-05-11 |
| 4317027 | Circuit protection devices | Joseph H. Evans | 1982-02-23 |
| 4315237 | PTC Devices comprising oxygen barrier layers | Alan J. Gotcher | 1982-02-09 |
| 4276466 | Heater with distributed heating element | Roger S. Goodrich | 1981-06-30 |
| 4238812 | Circuit protection devices comprising PTC elements | Joseph H. Evans, Donald F. Pettengill | 1980-12-09 |