Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695891 | Battery thermal management system | Franz Wagner | 1997-12-09 |
| 5645957 | Lead-acid battery having a cover extending beyond a jar | Franz Wagner | 1997-07-08 |
| 5593796 | Recombinant lead-acid cell and long life battery | Franz Wagner | 1997-01-14 |