Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8338759 | Heating cable | Wells Whitney | 2012-12-25 |
| 8212191 | Heating cable with a heating element positioned in the middle of bus wires | Wells Whitney | 2012-07-03 |
| 7989740 | Heating cable | Wells Whitney | 2011-08-02 |
| 6703593 | Low and high voltage electrical heating devices | — | 2004-03-09 |
| 6492629 | Electrical heating devices and resettable fuses | — | 2002-12-10 |
| 5432323 | Regulated electric strip heater | — | 1995-07-11 |
| 4631392 | Flexible high temperature heater | Michael O'Brien, Shou-Mean Fang | 1986-12-23 |
| 4591700 | PTC compositions | — | 1986-05-27 |
| 4400614 | PTC Devices and their preparation | — | 1983-08-23 |
| 4334351 | Novel PTC devices and their preparation | — | 1982-06-15 |
| 4318881 | Method for annealing PTC compositions | — | 1982-03-09 |