Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5225069 | Process for the production of oxide ceramic surface films on silicon-containing light metal cast alloys | Kerstin Haupt, Jurgen Schmidt, Ullrich Bayer | 1993-07-06 |
| 5094727 | Electrolyte for producing conversion coatings | Thomas Schwarz, Ullrich Bayer, Kerstin Haupt, Juergen Schmidt | 1992-03-10 |
| 5075178 | Black surface layer on light metal | Juergen Schmidt, Roland Erdmann, Marion Reichert | 1991-12-24 |
| 5035781 | Electrolyte for the production of black surface layers on light metals | Jurgen Schmidt, Roland Erdmann, Marion Reichert, Ullrich Bayer, Peter Kurze +8 more | 1991-07-30 |