Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6248478 | Battery | Stephen O. Friend, Howard Tennent, Robert W. Hausslein | 2001-06-19 |
| 5110693 | Electrochemical cell | Stephen O. Friend, Howard Tennent, Robert W. Hausslein | 1992-05-05 |