Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6358638 | Cold start-up of a PEM fuel cell | Jeffrey A. Rock | 2002-03-19 |
| 6057059 | Surface recrystallization of lead-alloy grid | Wellington Y. Kwok, Ronald David Brost | 2000-05-02 |
| 4848439 | Method of countergravity casting | — | 1989-07-18 |
| 4742611 | Battery assembly process and apparatus | Clarence A. Meadows, Phillip E. Grady | 1988-05-10 |