Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5510012 | Method for producing a decorative gold alloy coating | Siegfried Schulz, Christoph Daube, Andreas Rack | 1996-04-23 |
| 5283435 | Apparatus for determining the concentration of a gas in a vacuum chamber | Christoph Daube, Uwe Kopacz | 1994-02-01 |