Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6582647 | Method for heat treating PTC devices | Michael Joseph Weber | 2003-06-24 |
| 6579931 | Low resistivity polymeric PTC compositions | — | 2003-06-17 |
| 6059997 | Polymeric PTC compositions | — | 2000-05-09 |
| 5955936 | PTC circuit protection device and manufacturing process for same | Philip C. Shaw, Jr., Donna L. Randle, Michael Joseph Weber, Michael Höss | 1999-09-21 |
| 5940958 | Method of manufacturing a PTC circuit protection device | Philip C. Shaw, Jr., Donna L. Randle, Michael Joseph Weber, Michael Höss | 1999-08-24 |
| 5880668 | Electrical devices having improved PTC polymeric compositions | — | 1999-03-09 |
| 5864280 | Electrical circuits with improved overcurrent protection | — | 1999-01-26 |
| 5814264 | Continuous manufacturing methods for positive temperature coefficient materials | Feng Cai | 1998-09-29 |