Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5281491 | Battery separator | Howard J. Troffkin, Robert M. Spotnitz, Richard T. Giovannoni, Yihong Guo | 1994-01-25 |
| 5240655 | Process of making a battery separator | Howard J. Troffkin, Robert M. Spotnitz, Richard T. Giovannoni, Yihong Guo | 1993-08-31 |