Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691688 | PTC device | Jeffrey Alan West | 1997-11-25 |
| 5675307 | PTC device with extended thickness | John J. Krimm, Jeffrey Alan West | 1997-10-07 |
| 5658480 | Heating element control | James A. Tennant | 1997-08-19 |