Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679479 | Battery separator | Francis E. Alexander | 1997-10-21 |
| 5665488 | Method of making a battery separator and the battery separator produced thereby | Gregory T. Humphrey, Daniel K. Lee | 1997-09-09 |