Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5099982 | Battery plate stacker | John W. Wirtz, David Yanik, Robert R. Rader, Roel Mendoza | 1992-03-31 |
| 5062762 | Battery plate stacker method | John W. Wirtz, David Yanik, Robert R. Rader, Roel Mendoza | 1991-11-05 |
| 4973218 | Battery plate stacker | John W. Wirtz, David Yanik, Robert R. Rader, Roel Mendoza | 1990-11-27 |