Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9755242 | Reformed battery grids | John W. Wirtz, John O. Wirtz | 2017-09-05 |
| 8875361 | Reformed battery grids | John W. Wirtz, John O. Wirtz | 2014-11-04 |
| 5494262 | Metal delivery system | Robert R. Rader | 1996-02-27 |
| 4545422 | Machine for continuously casting battery grids | Raymond L. Schenk | 1985-10-08 |
| 4544014 | Machine for continuously casting battery grids | Raymond L. Schenk, Robert R. Rader, John W. Wirtz | 1985-10-01 |
| 4534404 | Machine for continuously casting battery grids | Raymond L. Schenk, Robert R. Rader, John W. Wirtz | 1985-08-13 |
| 4509581 | Machine for continuously casting battery grids | Raymond L. Schenk, Robert R. Rader, John W. Wirtz | 1985-04-09 |
| 4489772 | Drum for continuous casting machine | Raymond L. Schenk, John W. Wirtz | 1984-12-25 |
| 4415016 | Machine for continuously casting battery grids | Raymond L. Schenk, Robert R. Rader, John W. Wirtz | 1983-11-15 |