Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4474611 | Arrangement of busbars for electrolytic reduction cells | Jean M. Blanc, Hans Pfister | 1984-10-02 |
| 4397728 | Device for conducting electric current between electrolytic cells | Hans Pfister, Jean M. Blanc | 1983-08-09 |