Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8076015 | Battery cell with improved pressure relief vent | Richard L. Bouffard, Peter M. Lewis, Huaxin Li, Paul R. Elsdon, Jr., Warren Sweet +2 more | 2011-12-13 |
| 7195839 | Battery cell with improved pressure relief vent | Richard L. Bouffard, Peter M. Lewis, Huaxin Li, Paul R. Elsdon, Jr., Warren Sweet +2 more | 2007-03-27 |