Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4689878 | PTC heater and method of manufacture | William W. Beauregard | 1987-09-01 |
| 4197449 | Flexible electrical heater | — | 1980-04-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4689878 | PTC heater and method of manufacture | William W. Beauregard | 1987-09-01 |
| 4197449 | Flexible electrical heater | — | 1980-04-08 |