Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4469932 | Plasma burner operated by means of gaseous mixtures | Karl Spiegelberg, Helmfried Jeske, Alexander Kolm, Fred Ebeling | 1984-09-04 |
| 4268585 | Soldering to a gold member | Rolf Daur, Günter Schmid | 1981-05-19 |