Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645956 | Resilient battery separator | Peter J. Degen, Ioannis P. Sipsas | 1997-07-08 |
| 5591539 | Electrolytically conductive battery separator polymeric film | Peter J. Degen | 1997-01-07 |