Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5290359 | Apparatus for production of a battery paste | Matthew A. Coonen, Ralph Petersen | 1994-03-01 |
| 5096611 | Process for the production of battery paste | Coonen A. Matthew, Ralph Petersen | 1992-03-17 |