Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5961854 | Electrode for resistance spot welding of aluminum sheet | Dietmar Mueller, Nikolaus Gschossmann, Norbert Donath | 1999-10-05 |
| H1108 | Air purification system | Rick A. Wynveen, Daniel C. Walter, Robert N. Schmidt | 1992-10-06 |
| 5110436 | Water electrolysis | David J. Grigger | 1992-05-05 |