Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682671 | Method of assembling a bipolar battery and bipolar battery | David L. Lund, Donald W. Groff | 1997-11-04 |
| 5660946 | Sealed lead-acid cells and batteries having an expandable cover | Deborah Huke, Edward Mattan | 1997-08-26 |