Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4481963 | Drop collector for an apparatus for conveying electrodes | Constant T. Verhoeven, Jean F. Viellefont | 1984-11-13 |
| 4392934 | Process and apparatus for replacing cathodes | Jean F. Viellefont | 1983-07-12 |