Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5726850 | Fail safe protection circuit for PTC comfort devices | — | 1998-03-10 |
| 5206485 | Low electromagnetic and electrostatic field radiating heater cable | Robert C. Srubas | 1993-04-27 |
| 5143649 | PTC compositions containing low molecular weight polymer molecules for reduced annealing | Brian D. Blackledge | 1992-09-01 |
| 5113058 | PCT heater cable composition and method for making same | Robert C. Srubas | 1992-05-12 |
| 5081341 | Electrical heating element for use in a personal comfort device | — | 1992-01-14 |
| 4910391 | Electrical heating element for use in a personal comfort device | — | 1990-03-20 |
| 4818439 | PTC compositions containing low molecular weight polymer molecules for reduced annealing | Brian D. Blackledge | 1989-04-04 |