Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6682844 | Release valve and method for venting a system | — | 2004-01-27 |
| 6410176 | Voltage monitoring system for a fuel cell stack | Larry A. Pitts, Kevin L. Mease, Charles M. Carlstrom, Jr., Russel Hugh Marvin | 2002-06-25 |